From e7d29e9ccc7da5dfcb9120788290b13c30f91bf2 Mon Sep 17 00:00:00 2001
From: Benjamin Pasero <benjamin.pasero@gmail.com>
Date: Fri, 8 Jun 2018 18:32:49 +0200
Subject: [PATCH] Electron v2.0.0 (#48290)

* Update to Electron 2.0-beta.7

* back to exploration build

* fix compile errors

* workaround build issue (go back to 1.24.0)

* bump to 1.25.0

* use electron 2.0.2

* revert custom distro
---
 .yarnrc                                       |     2 +-
 resources/linux/debian/control.template       |     3 +-
 resources/linux/rpm/dependencies.json         |     4 +-
 scripts/code-cli.bat                          |     2 +-
 scripts/code-cli.sh                           |     2 +-
 scripts/code.sh                               |     5 +-
 scripts/test.sh                               |     5 +-
 src/main.js                                   |     4 +
 src/typings/electron.d.ts                     |  1209 +-
 src/typings/node.d.ts                         | 10020 ++++++++++------
 .../processExplorer/processExplorerMain.ts    |     2 +-
 src/vs/code/electron-main/window.ts           |    22 -
 .../electron-main/updateService.darwin.ts     |     2 +-
 .../parts/activitybar/activitybarPart.ts      |    31 +-
 src/vs/workbench/node/extensionHostProcess.ts |    20 +-
 .../test/browser/debugANSIHandling.test.ts    |     8 +-
 .../node/configurationService.ts              |    16 +-
 .../electron-browser/contextmenuService.ts    |    34 +-
 .../electron-browser/extensionHost.ts         |    10 +-
 19 files changed, 7459 insertions(+), 3942 deletions(-)

diff --git a/.yarnrc b/.yarnrc
index 42f08fa0c026d..065a88b5ee1ee 100644
--- a/.yarnrc
+++ b/.yarnrc
@@ -1,3 +1,3 @@
 disturl "https://atom.io/download/electron"
-target "1.7.12"
+target "2.0.2"
 runtime "electron"
diff --git a/resources/linux/debian/control.template b/resources/linux/debian/control.template
index 57f7c2075ff5c..eeaf96e075135 100644
--- a/resources/linux/debian/control.template
+++ b/resources/linux/debian/control.template
@@ -1,7 +1,7 @@
 Package: @@NAME@@
 Version: @@VERSION@@
 Section: devel
-Depends: libnotify4, libnss3, gnupg, apt, libxkbfile1, libgconf-2-4, libsecret-1-0
+Depends: libnotify4, libnss3, gnupg, apt, libxkbfile1, libgconf-2-4, libsecret-1-0, libgtk-3-0 (>= 3.10.0)
 Priority: optional
 Architecture: @@ARCHITECTURE@@
 Maintainer: Microsoft Corporation <vscode-linux@microsoft.com>
@@ -12,3 +12,4 @@ Conflicts: visual-studio-@@NAME@@
 Replaces: visual-studio-@@NAME@@
 Description: Code editing. Redefined.
  Visual Studio Code is a new choice of tool that combines the simplicity of a code editor with what developers need for the core edit-build-debug cycle. See https://code.visualstudio.com/docs/setup/linux for installation instructions and FAQ.
+ 
\ No newline at end of file
diff --git a/resources/linux/rpm/dependencies.json b/resources/linux/rpm/dependencies.json
index e78bf4f85ca28..c2ae8b8fe3133 100644
--- a/resources/linux/rpm/dependencies.json
+++ b/resources/linux/rpm/dependencies.json
@@ -4,7 +4,7 @@
 		"libpthread.so.0(GLIBC_2.2.5)(64bit)",
 		"libpthread.so.0(GLIBC_2.3.2)(64bit)",
 		"libpthread.so.0(GLIBC_2.3.3)(64bit)",
-		"libgtk-x11-2.0.so.0()(64bit)",
+		"libgtk-3.so.0()(64bit)",
 		"libgdk-x11-2.0.so.0()(64bit)",
 		"libatk-1.0.so.0()(64bit)",
 		"libgio-2.0.so.0()(64bit)",
@@ -114,7 +114,7 @@
 		"libglib-2.0.so.0",
 		"libgmodule-2.0.so.0",
 		"libgobject-2.0.so.0",
-		"libgtk-x11-2.0.so.0",
+		"libgtk-3.so.0",
 		"libm.so.6",
 		"libm.so.6(GLIBC_2.0)",
 		"libm.so.6(GLIBC_2.1)",
diff --git a/scripts/code-cli.bat b/scripts/code-cli.bat
index f08ddb744e0cb..7bca260314d86 100644
--- a/scripts/code-cli.bat
+++ b/scripts/code-cli.bat
@@ -29,7 +29,7 @@ set ELECTRON_ENABLE_LOGGING=1
 set ELECTRON_ENABLE_STACK_DUMPING=1
 
 :: Launch Code
-%CODE% --debug=5874 out\cli.js . %*
+%CODE% --inspect=5874 out\cli.js . %*
 popd
 
 endlocal
diff --git a/scripts/code-cli.sh b/scripts/code-cli.sh
index 89e518322fc94..ba2121d9bb958 100755
--- a/scripts/code-cli.sh
+++ b/scripts/code-cli.sh
@@ -32,7 +32,7 @@ function code() {
 	VSCODE_DEV=1 \
 	ELECTRON_ENABLE_LOGGING=1 \
 	ELECTRON_ENABLE_STACK_DUMPING=1 \
-	"$CODE" --debug=5874 "$ROOT/out/cli.js" . "$@"
+	"$CODE" --inspect=5874 "$ROOT/out/cli.js" . "$@"
 }
 
 code "$@"
diff --git a/scripts/code.sh b/scripts/code.sh
index f6d103ceda511..26332faea6ccb 100755
--- a/scripts/code.sh
+++ b/scripts/code.sh
@@ -3,6 +3,10 @@
 if [[ "$OSTYPE" == "darwin"* ]]; then
 	realpath() { [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"; }
 	ROOT=$(dirname "$(dirname "$(realpath "$0")")")
+
+	# On Linux with Electron 2.0.x running out of a VM causes
+	# a freeze so we only enable this flag on macOS
+	export ELECTRON_ENABLE_LOGGING=1
 else
 	ROOT=$(dirname "$(dirname "$(readlink -f $0)")")
 fi
@@ -40,7 +44,6 @@ function code() {
 	export NODE_ENV=development
 	export VSCODE_DEV=1
 	export VSCODE_CLI=1
-	export ELECTRON_ENABLE_LOGGING=1
 	export ELECTRON_ENABLE_STACK_DUMPING=1
 
 	# Launch Code
diff --git a/scripts/test.sh b/scripts/test.sh
index d88a28c5e2da3..ac96627846f2f 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -4,6 +4,10 @@
 if [[ "$OSTYPE" == "darwin"* ]]; then
 	realpath() { [[ $1 = /* ]] && echo "$1" || echo "$PWD/${1#./}"; }
 	ROOT=$(dirname $(dirname $(realpath "$0")))
+
+	# On Linux with Electron 2.0.x running out of a VM causes
+	# a freeze so we only enable this flag on macOS
+	export ELECTRON_ENABLE_LOGGING=1
 else
 	ROOT=$(dirname $(dirname $(readlink -f $0)))
 fi
@@ -25,7 +29,6 @@ test -d node_modules || yarn
 node build/lib/electron.js || ./node_modules/.bin/gulp electron
 
 # Unit Tests
-export ELECTRON_ENABLE_LOGGING=1
 if [[ "$OSTYPE" == "darwin"* ]]; then
 	cd $ROOT ; ulimit -n 4096 ; \
 		"$CODE" \
diff --git a/src/main.js b/src/main.js
index beeae6f79be67..ce9c5e893b23d 100644
--- a/src/main.js
+++ b/src/main.js
@@ -37,6 +37,10 @@ Error.stackTraceLimit = 100; // increase number of stack frames (from 10, https:
 //#endregion
 
 let app = require('electron').app;
+
+// TODO@Ben Electron 2.0.x: prevent localStorage migration from SQLite to LevelDB due to issues
+app.commandLine.appendSwitch('disable-mojo-local-storage');
+
 let fs = require('fs');
 let path = require('path');
 let minimist = require('minimist');
diff --git a/src/typings/electron.d.ts b/src/typings/electron.d.ts
index daf41dbc736bf..4b6644aff8837 100644
--- a/src/typings/electron.d.ts
+++ b/src/typings/electron.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for Electron 1.7.9
+// Type definitions for Electron 2.0.0-beta.2
 // Project: http://electron.atom.io/
 // Definitions by: The Electron Team <https://github.com/electron/electron>
 // Definitions: https://github.com/electron/electron-typescript-definitions
@@ -58,6 +58,7 @@ declare namespace Electron {
 		dialog: Dialog;
 		DownloadItem: typeof DownloadItem;
 		globalShortcut: GlobalShortcut;
+		inAppPurchase: InAppPurchase;
 		IncomingMessage: typeof IncomingMessage;
 		ipcMain: IpcMain;
 		Menu: typeof Menu;
@@ -94,6 +95,7 @@ declare namespace Electron {
 	const desktopCapturer: DesktopCapturer;
 	const dialog: Dialog;
 	const globalShortcut: GlobalShortcut;
+	const inAppPurchase: InAppPurchase;
 	const ipcMain: IpcMain;
 	const ipcRenderer: IpcRenderer;
 	type nativeImage = NativeImage;
@@ -157,6 +159,46 @@ declare namespace Electron {
 			hasVisibleWindows: boolean) => void): this;
 		removeListener(event: 'activate', listener: (event: Event,
 			hasVisibleWindows: boolean) => void): this;
+		/**
+		 * Emitted during Handoff after an activity from this device was successfully
+		 * resumed on another one.
+		 */
+		on(event: 'activity-was-continued', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * Contains app-specific state stored by the activity.
+			 */
+			userInfo: any) => void): this;
+		once(event: 'activity-was-continued', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * Contains app-specific state stored by the activity.
+			 */
+			userInfo: any) => void): this;
+		addListener(event: 'activity-was-continued', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * Contains app-specific state stored by the activity.
+			 */
+			userInfo: any) => void): this;
+		removeListener(event: 'activity-was-continued', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * Contains app-specific state stored by the activity.
+			 */
+			userInfo: any) => void): this;
 		/**
 		 * Emitted before the application starts closing its windows. Calling
 		 * event.preventDefault() will prevent the default behaviour, which is terminating
@@ -286,6 +328,46 @@ declare namespace Electron {
 			 * Contains app-specific state stored by the activity on another device.
 			 */
 			userInfo: any) => void): this;
+		/**
+		 * Emitted during Handoff when an activity from a different device fails to be
+		 * resumed.
+		 */
+		on(event: 'continue-activity-error', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * A string with the error's localized description.
+			 */
+			error: string) => void): this;
+		once(event: 'continue-activity-error', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * A string with the error's localized description.
+			 */
+			error: string) => void): this;
+		addListener(event: 'continue-activity-error', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * A string with the error's localized description.
+			 */
+			error: string) => void): this;
+		removeListener(event: 'continue-activity-error', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * A string with the error's localized description.
+			 */
+			error: string) => void): this;
 		/**
 		 * Emitted when the gpu process crashes or is killed.
 		 */
@@ -410,6 +492,49 @@ declare namespace Electron {
 			url: string,
 			certificateList: Certificate[],
 			callback: (certificate?: Certificate) => void) => void): this;
+		/**
+		 * Emitted when Handoff is about to be resumed on another device. If you need to
+		 * update the state to be transferred, you should call event.preventDefault()
+		 * immediately, construct a new userInfo dictionary and call
+		 * app.updateCurrentActiviy() in a timely manner. Otherwise the operation will fail
+		 * and continue-activity-error will be called.
+		 */
+		on(event: 'update-activity-state', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * Contains app-specific state stored by the activity.
+			 */
+			userInfo: any) => void): this;
+		once(event: 'update-activity-state', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * Contains app-specific state stored by the activity.
+			 */
+			userInfo: any) => void): this;
+		addListener(event: 'update-activity-state', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * Contains app-specific state stored by the activity.
+			 */
+			userInfo: any) => void): this;
+		removeListener(event: 'update-activity-state', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string,
+			/**
+			 * Contains app-specific state stored by the activity.
+			 */
+			userInfo: any) => void): this;
 		/**
 		 * Emitted when a new webContents is created.
 		 */
@@ -421,6 +546,31 @@ declare namespace Electron {
 			webContents: WebContents) => void): this;
 		removeListener(event: 'web-contents-created', listener: (event: Event,
 			webContents: WebContents) => void): this;
+		/**
+		 * Emitted during Handoff before an activity from a different device wants to be
+		 * resumed. You should call event.preventDefault() if you want to handle this
+		 * event.
+		 */
+		on(event: 'will-continue-activity', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string) => void): this;
+		once(event: 'will-continue-activity', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string) => void): this;
+		addListener(event: 'will-continue-activity', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string) => void): this;
+		removeListener(event: 'will-continue-activity', listener: (event: Event,
+			/**
+			 * A string identifying the activity. Maps to .
+			 */
+			type: string) => void): this;
 		/**
 		 * Emitted when the application has finished basic startup. On Windows and Linux,
 		 * the will-finish-launching event is the same as the ready event; on macOS, this
@@ -482,7 +632,7 @@ declare namespace Electron {
 		 */
 		enableMixedSandbox(): void;
 		/**
-		 * Exits immediately with exitCode.  exitCode defaults to 0. All windows will be
+		 * Exits immediately with exitCode. exitCode defaults to 0. All windows will be
 		 * closed immediately without asking user and the before-quit and will-quit events
 		 * will not be emitted.
 		 */
@@ -492,7 +642,6 @@ declare namespace Electron {
 		 * the active app. On Windows, focuses on the application's first window.
 		 */
 		focus(): void;
-		getAppMemoryInfo(): ProcessMetric[];
 		getAppMetrics(): ProcessMetric[];
 		getAppPath(): string;
 		getBadgeCount(): number;
@@ -501,12 +650,12 @@ declare namespace Electron {
 		 * Fetches a path's associated icon. On Windows, there a 2 kinds of icons: On Linux
 		 * and macOS, icons depend on the application associated with file mime type.
 		 */
-		getFileIcon(path: string, options: FileIconOptions, callback: (error: Error, icon: NativeImage) => void): void;
+		getFileIcon(path: string, callback: (error: Error, icon: NativeImage) => void): void;
 		/**
 		 * Fetches a path's associated icon. On Windows, there a 2 kinds of icons: On Linux
 		 * and macOS, icons depend on the application associated with file mime type.
 		 */
-		getFileIcon(path: string, callback: (error: Error, icon: NativeImage) => void): void;
+		getFileIcon(path: string, options: FileIconOptions, callback: (error: Error, icon: NativeImage) => void): void;
 		getGPUFeatureStatus(): GPUFeatureStatus;
 		getJumpListSettings(): JumpListSettings;
 		/**
@@ -517,8 +666,7 @@ declare namespace Electron {
 		getLocale(): string;
 		/**
 		 * If you provided path and args options to app.setLoginItemSettings then you need
-		 * to pass the same arguments here for openAtLogin to be set correctly. Note: This
-		 * API has no effect on MAS builds.
+		 * to pass the same arguments here for openAtLogin to be set correctly.
 		 */
 		getLoginItemSettings(options?: LoginItemSettingsOptions): LoginItemSettings;
 		/**
@@ -544,6 +692,10 @@ declare namespace Electron {
 		 * net_error_list.
 		 */
 		importCertificate(options: ImportCertificateOptions, callback: (result: number) => void): void;
+		/**
+		 * Invalidates the current Handoff user activity.
+		 */
+		invalidateCurrentActivity(type: string): void;
 		isAccessibilitySupportEnabled(): boolean;
 		/**
 		 * This method checks if the current executable is the default handler for a
@@ -555,6 +707,7 @@ declare namespace Electron {
 		 * the Windows Registry and LSCopyDefaultHandlerForURLScheme internally.
 		 */
 		isDefaultProtocolClient(protocol: string, path?: string, args?: string[]): boolean;
+		isInApplicationsFolder(): boolean;
 		isReady(): boolean;
 		isUnityRunning(): boolean;
 		/**
@@ -578,6 +731,15 @@ declare namespace Electron {
 		 * instance starts:
 		 */
 		makeSingleInstance(callback: (argv: string[], workingDirectory: string) => void): boolean;
+		/**
+		 * No confirmation dialog will be presented by default, if you wish to allow the
+		 * user to confirm the operation you may do so using the dialog API. NOTE: This
+		 * method throws errors if anything other than the user causes the move to fail.
+		 * For instance if the user cancels the authorization dialog this method returns
+		 * false. If we fail to perform the copy then this method will throw an error. The
+		 * message in the error should be informative and tell you exactly what went wrong
+		 */
+		moveToApplicationsFolder(): boolean;
 		/**
 		 * Try to close all windows. The before-quit event will be emitted first. If all
 		 * windows are successfully closed, the will-quit event will be emitted and by
@@ -615,6 +777,15 @@ declare namespace Electron {
 		 * .plist file. See the Apple docs for more details.
 		 */
 		setAboutPanelOptions(options: AboutPanelOptionsOptions): void;
+		/**
+		 * Manually enables Chrome's accessibility support, allowing to expose
+		 * accessibility switch to users in application settings.
+		 * https://www.chromium.org/developers/design-documents/accessibility for more
+		 * details. Disabled by default. Note: Rendering accessibility tree can
+		 * significantly affect the performance of your app. It should not be enabled by
+		 * default.
+		 */
+		setAccessibilitySupportEnabled(enabled: boolean): void;
 		/**
 		 * Changes the Application User Model ID to id.
 		 */
@@ -660,8 +831,7 @@ declare namespace Electron {
 		/**
 		 * Set the app's login item settings. To work with Electron's autoUpdater on
 		 * Windows, which uses Squirrel, you'll want to set the launch path to Update.exe,
-		 * and pass arguments that specify your application name. For example: Note: This
-		 * API has no effect on MAS builds.
+		 * and pass arguments that specify your application name. For example:
 		 */
 		setLoginItemSettings(settings: Settings): void;
 		/**
@@ -694,6 +864,18 @@ declare namespace Electron {
 		 * them.
 		 */
 		show(): void;
+		/**
+		 * Start accessing a security scoped resource. With this method electron
+		 * applications that are packaged for the Mac App Store may reach outside their
+		 * sandbox to access files chosen by the user. See Apple's documentation for a
+		 * description of how this system works.
+		 */
+		startAccessingSecurityScopedResource(bookmarkData: string): Function;
+		/**
+		 * Updates the current activity if its type matches type, merging the entries from
+		 * userInfo into its current userInfo dictionary.
+		 */
+		updateCurrentActivity(type: string, userInfo: any): void;
 		commandLine: CommandLine;
 		dock: Dock;
 	}
@@ -763,16 +945,18 @@ declare namespace Electron {
 		getFeedURL(): string;
 		/**
 		 * Restarts the app and installs the update after it has been downloaded. It should
-		 * only be called after update-downloaded has been emitted. Note:
-		 * autoUpdater.quitAndInstall() will close all application windows first and only
-		 * emit before-quit event on app after that. This is different from the normal quit
-		 * event sequence.
+		 * only be called after update-downloaded has been emitted. Under the hood calling
+		 * autoUpdater.quitAndInstall() will close all application windows first, and
+		 * automatically call app.quit() after all windows have been closed. Note: If the
+		 * application is quit without calling this API after the update-downloaded event
+		 * has been emitted, the application will still be replaced by the updated one on
+		 * the next run.
 		 */
 		quitAndInstall(): void;
 		/**
 		 * Sets the url and initialize the auto updater.
 		 */
-		setFeedURL(url: string, requestHeaders?: any): void;
+		setFeedURL(options: FeedURLOptions): void;
 	}
 
 	interface BluetoothDevice {
@@ -789,6 +973,8 @@ declare namespace Electron {
 
 		constructor(options?: BrowserViewConstructorOptions);
 		static fromId(id: number): BrowserView;
+		static fromWebContents(webContents: WebContents): BrowserView | null;
+		static getAllViews(): BrowserView[];
 		setAutoResize(options: AutoResizeOptions): void;
 		setBackgroundColor(color: string): void;
 		/**
@@ -831,7 +1017,11 @@ declare namespace Electron {
 		 * cancel the close. Usually you would want to use the beforeunload handler to
 		 * decide whether the window should be closed, which will also be called when the
 		 * window is reloaded. In Electron, returning any value other than undefined would
-		 * cancel the close. For example:
+		 * cancel the close. For example: Note: There is a subtle difference between the
+		 * behaviors of window.onbeforeunload = handler and
+		 * window.addEventListener('beforeunload', handler). It is recommended to always
+		 * set the event.returnValue explicitly, instead of just returning a value, as the
+		 * former works more consistently within Electron.
 		 */
 		on(event: 'close', listener: (event: Event) => void): this;
 		once(event: 'close', listener: (event: Event) => void): this;
@@ -1056,6 +1246,7 @@ declare namespace Electron {
 		 * This API cannot be called before the ready event of the app module is emitted.
 		 */
 		static addExtension(path: string): void;
+		static fromBrowserView(browserView: BrowserView): BrowserWindow | null;
 		static fromId(id: number): BrowserWindow;
 		static fromWebContents(webContents: WebContents): BrowserWindow;
 		static getAllWindows(): BrowserWindow[];
@@ -1080,6 +1271,10 @@ declare namespace Electron {
 		 * ready event of the app module is emitted.
 		 */
 		static removeExtension(name: string): void;
+		/**
+		 * Adds a window as a tab on this window, after the tab for the window instance.
+		 */
+		addTabbedWindow(browserWindow: BrowserWindow): void;
 		/**
 		 * Removes focus from the window.
 		 */
@@ -1123,6 +1318,11 @@ declare namespace Electron {
 		focus(): void;
 		focusOnWebView(): void;
 		getBounds(): Rectangle;
+		/**
+		 * Note: The BrowserView API is currently experimental and may change or be removed
+		 * in future Electron releases.
+		 */
+		getBrowserView(): BrowserView | null;
 		getChildWindows(): BrowserWindow[];
 		getContentBounds(): Rectangle;
 		getContentSize(): number[];
@@ -1133,6 +1333,7 @@ declare namespace Electron {
 		 * (unsigned long) on Linux.
 		 */
 		getNativeWindowHandle(): Buffer;
+		getOpacity(): number;
 		getParentWindow(): BrowserWindow;
 		getPosition(): number[];
 		getRepresentedFilename(): string;
@@ -1184,12 +1385,18 @@ declare namespace Electron {
 		 */
 		isMovable(): boolean;
 		isResizable(): boolean;
+		isSimpleFullScreen(): boolean;
 		isVisible(): boolean;
 		/**
 		 * Note: This API always returns false on Windows.
 		 */
 		isVisibleOnAllWorkspaces(): boolean;
 		isWindowMessageHooked(message: number): boolean;
+		/**
+		 * Same as webContents.loadFile, filePath should be a path to an HTML file relative
+		 * to the root of your application.  See the webContents docs for more information.
+		 */
+		loadFile(filePath: string): void;
 		/**
 		 * Same as webContents.loadURL(url[, options]). The url can be a remote address
 		 * (e.g. http://) or a path to a local HTML file using the file:// protocol. To
@@ -1203,11 +1410,21 @@ declare namespace Electron {
 		 * being displayed already.
 		 */
 		maximize(): void;
+		/**
+		 * Merges all windows into one window with multiple tabs when native tabs are
+		 * enabled and there is more than one open window.
+		 */
+		mergeAllWindows(): void;
 		/**
 		 * Minimizes the window. On some platforms the minimized window will be shown in
 		 * the Dock.
 		 */
 		minimize(): void;
+		/**
+		 * Moves the current tab into a new window if native tabs are enabled and there is
+		 * more than one tab in the current window.
+		 */
+		moveTabToNewWindow(): void;
 		/**
 		 * Uses Quick Look to preview a file at a given path.
 		 */
@@ -1220,6 +1437,16 @@ declare namespace Electron {
 		 * Restores the window from minimized state to its previous state.
 		 */
 		restore(): void;
+		/**
+		 * Selects the next tab when native tabs are enabled and there are other tabs in
+		 * the window.
+		 */
+		selectNextTab(): void;
+		/**
+		 * Selects the previous tab when native tabs are enabled and there are other tabs
+		 * in the window.
+		 */
+		selectPreviousTab(): void;
 		/**
 		 * Sets whether the window should show always on top of other windows. After
 		 * setting this, the window is still a normal window, not a toolbox window which
@@ -1261,10 +1488,6 @@ declare namespace Electron {
 		 * Resizes and moves the window to the supplied bounds
 		 */
 		setBounds(bounds: Rectangle, animate?: boolean): void;
-		/**
-		 * Note: The BrowserView API is currently experimental and may change or be removed
-		 * in future Electron releases.
-		 */
 		setBrowserView(browserView: BrowserView): void;
 		/**
 		 * Sets whether the window can be manually closed by user. On Linux does nothing.
@@ -1290,6 +1513,10 @@ declare namespace Electron {
 		 * bar will become gray when set to true.
 		 */
 		setDocumentEdited(edited: boolean): void;
+		/**
+		 * Disable or enable the window.
+		 */
+		setEnabled(enable: boolean): void;
 		/**
 		 * Changes whether the window can be focused.
 		 */
@@ -1316,7 +1543,7 @@ declare namespace Electron {
 		 * window will be passed to the window below this window, but if this window has
 		 * focus, it will still receive keyboard events.
 		 */
-		setIgnoreMouseEvents(ignore: boolean): void;
+		setIgnoreMouseEvents(ignore: boolean, options?: IgnoreMouseEventsOptions): void;
 		/**
 		 * Enters or leaves the kiosk mode.
 		 */
@@ -1353,6 +1580,10 @@ declare namespace Electron {
 		 * Sets whether the window can be moved by user. On Linux does nothing.
 		 */
 		setMovable(movable: boolean): void;
+		/**
+		 * Sets the opacity of the window. On Linux does nothing.
+		 */
+		setOpacity(opacity: number): void;
 		/**
 		 * Sets a 16 x 16 pixel overlay onto the current taskbar icon, usually used to
 		 * convey some sort of application status or to passively notify the user.
@@ -1393,6 +1624,11 @@ declare namespace Electron {
 		 * HTML-rendered toolbar. For example:
 		 */
 		setSheetOffset(offsetY: number, offsetX?: number): void;
+		/**
+		 * Enters or leaves simple fullscreen mode. Simple fullscreen mode emulates the
+		 * native fullscreen behavior found in versions of Mac OS X prior to Lion (10.7).
+		 */
+		setSimpleFullScreen(flag: boolean): void;
 		/**
 		 * Resizes the window to width and height.
 		 */
@@ -1456,6 +1692,11 @@ declare namespace Electron {
 		 * Shows the window but doesn't focus on it.
 		 */
 		showInactive(): void;
+		/**
+		 * Toggles the visibility of the tab bar if native tabs are enabled and there is
+		 * only one tab in the current window.
+		 */
+		toggleTabBar(): void;
 		/**
 		 * Unhooks all of the window messages.
 		 */
@@ -1689,7 +1930,7 @@ declare namespace Electron {
 			 * An object representing the HTTP response message.
 			 */
 			response: IncomingMessage) => void): this;
-		constructor(options: any | string);
+		constructor(options: 'method' | 'url' | 'session' | 'partition' | 'protocol' | 'host' | 'hostname' | 'port' | 'path' | 'redirect');
 		/**
 		 * Cancels an ongoing HTTP transaction. If the request has already emitted the
 		 * close event, the abort operation will have no effect. Otherwise an ongoing event
@@ -1917,7 +2158,7 @@ declare namespace Electron {
 		 */
 		on(event: 'changed', listener: (event: Event,
 			/**
-			 * The cookie that was changed
+			 * The cookie that was changed.
 			 */
 			cookie: Cookie,
 			/**
@@ -1930,7 +2171,7 @@ declare namespace Electron {
 			removed: boolean) => void): this;
 		once(event: 'changed', listener: (event: Event,
 			/**
-			 * The cookie that was changed
+			 * The cookie that was changed.
 			 */
 			cookie: Cookie,
 			/**
@@ -1943,7 +2184,7 @@ declare namespace Electron {
 			removed: boolean) => void): this;
 		addListener(event: 'changed', listener: (event: Event,
 			/**
-			 * The cookie that was changed
+			 * The cookie that was changed.
 			 */
 			cookie: Cookie,
 			/**
@@ -1956,7 +2197,7 @@ declare namespace Electron {
 			removed: boolean) => void): this;
 		removeListener(event: 'changed', listener: (event: Event,
 			/**
-			 * The cookie that was changed
+			 * The cookie that was changed.
 			 */
 			cookie: Cookie,
 			/**
@@ -1972,8 +2213,8 @@ declare namespace Electron {
 		 */
 		flushStore(callback: Function): void;
 		/**
-		 * Sends a request to get all cookies matching details, callback will be called
-		 * with callback(error, cookies) on complete.
+		 * Sends a request to get all cookies matching filter, callback will be called with
+		 * callback(error, cookies) on complete.
 		 */
 		get(filter: Filter, callback: (error: Error, cookies: Cookie[]) => void): void;
 		/**
@@ -1994,7 +2235,7 @@ declare namespace Electron {
 
 		/**
 		 * The number of average idle cpu wakeups per second since the last call to
-		 * getCPUUsage. First call returns 0.
+		 * getCPUUsage. First call returns 0. Will always return 0 on Windows.
 		 */
 		idleWakeupsPerSecond: number;
 		/**
@@ -2007,19 +2248,31 @@ declare namespace Electron {
 
 		// Docs: http://electron.atom.io/docs/api/structures/crash-report
 
-		date: string;
-		ID: number;
+		date: Date;
+		id: string;
 	}
 
 	interface CrashReporter extends EventEmitter {
 
 		// Docs: http://electron.atom.io/docs/api/crash-reporter
 
+		/**
+		 * Set an extra parameter to be sent with the crash report. The values specified
+		 * here will be sent in addition to any values set via the extra option when start
+		 * was called. This API is only available on macOS, if you need to add/update extra
+		 * parameters on Linux and Windows after your first call to start you can call
+		 * start again with the updated extra options.
+		 */
+		addExtraParameter(key: string, value: string): void;
 		/**
 		 * Returns the date and ID of the last crash report. If no crash reports have been
 		 * sent or the crash reporter has not been started, null is returned.
 		 */
 		getLastCrashReport(): CrashReport;
+		/**
+		 * See all of the current parameters being passed to the crash reporter.
+		 */
+		getParameters(): void;
 		/**
 		 * Returns all uploaded crash reports. Each report contains the date and uploaded
 		 * ID.
@@ -2030,13 +2283,10 @@ declare namespace Electron {
 		 */
 		getUploadToServer(): boolean;
 		/**
-		 * Set an extra parameter to be sent with the crash report. The values specified
-		 * here will be sent in addition to any values set via the extra option when start
-		 * was called. This API is only available on macOS, if you need to add/update extra
-		 * parameters on Linux and Windows after your first call to start you can call
-		 * start again with the updated extra options.
+		 * Remove a extra parameter from the current set of parameters so that it will not
+		 * be sent with the crash report.
 		 */
-		setExtraParameter(key: string, value: string): void;
+		removeExtraParameter(key: string): void;
 		/**
 		 * This would normally be controlled by user preferences. This has no effect if
 		 * called before start is called. Note: This API can only be called from the main
@@ -2057,7 +2307,7 @@ declare namespace Electron {
 		 * well. This will start the process that will monitor and send the crash reports.
 		 * Replace submitURL, productName and crashesDirectory with appropriate values.
 		 * Note: If you need send additional/updated extra parameters after your first call
-		 * start you can call setExtraParameter on macOS or call start again with the
+		 * start you can call addExtraParameter on macOS or call start again with the
 		 * new/updated extra parameters on Linux and Windows. Note: On macOS, Electron uses
 		 * a new crashpad client for crash collection and reporting. If you want to enable
 		 * crash reporting, initializing crashpad from the main process using
@@ -2225,7 +2475,7 @@ declare namespace Electron {
 		/**
 		 * Displays a modal dialog that shows an error message. This API can be called
 		 * safely before the ready event the app module emits, it is usually used to report
-		 * errors in early stage of startup.  If called before the app readyevent on Linux,
+		 * errors in early stage of startup. If called before the app readyevent on Linux,
 		 * the message will be emitted to stderr, and no GUI dialog will appear.
 		 */
 		showErrorBox(title: string, content: string): void;
@@ -2253,11 +2503,11 @@ declare namespace Electron {
 		 * dots (e.g. 'png' is good but '.png' and '*.png' are bad). To show all files, use
 		 * the '*' wildcard (no other wildcard is supported). If a callback is passed, the
 		 * API call will be asynchronous and the result will be passed via
-		 * callback(filenames) Note: On Windows and Linux an open dialog can not be both a
+		 * callback(filenames). Note: On Windows and Linux an open dialog can not be both a
 		 * file selector and a directory selector, so if you set properties to ['openFile',
 		 * 'openDirectory'] on these platforms, a directory selector will be shown.
 		 */
-		showOpenDialog(browserWindow: BrowserWindow, options: OpenDialogOptions, callback?: (filePaths: string[]) => void): string[];
+		showOpenDialog(browserWindow: BrowserWindow, options: OpenDialogOptions, callback?: (filePaths: string[], bookmarks: string[]) => void): string[];
 		/**
 		 * The browserWindow argument allows the dialog to attach itself to a parent
 		 * window, making it modal. The filters specifies an array of file types that can
@@ -2266,27 +2516,27 @@ declare namespace Electron {
 		 * dots (e.g. 'png' is good but '.png' and '*.png' are bad). To show all files, use
 		 * the '*' wildcard (no other wildcard is supported). If a callback is passed, the
 		 * API call will be asynchronous and the result will be passed via
-		 * callback(filenames) Note: On Windows and Linux an open dialog can not be both a
+		 * callback(filenames). Note: On Windows and Linux an open dialog can not be both a
 		 * file selector and a directory selector, so if you set properties to ['openFile',
 		 * 'openDirectory'] on these platforms, a directory selector will be shown.
 		 */
-		showOpenDialog(options: OpenDialogOptions, callback?: (filePaths: string[]) => void): string[];
+		showOpenDialog(options: OpenDialogOptions, callback?: (filePaths: string[], bookmarks: string[]) => void): string[];
 		/**
 		 * The browserWindow argument allows the dialog to attach itself to a parent
 		 * window, making it modal. The filters specifies an array of file types that can
 		 * be displayed, see dialog.showOpenDialog for an example. If a callback is passed,
 		 * the API call will be asynchronous and the result will be passed via
-		 * callback(filename)
+		 * callback(filename).
 		 */
-		showSaveDialog(browserWindow: BrowserWindow, options: SaveDialogOptions, callback?: (filename: string) => void): string;
+		showSaveDialog(browserWindow: BrowserWindow, options: SaveDialogOptions, callback?: (filename: string, bookmark: string) => void): string;
 		/**
 		 * The browserWindow argument allows the dialog to attach itself to a parent
 		 * window, making it modal. The filters specifies an array of file types that can
 		 * be displayed, see dialog.showOpenDialog for an example. If a callback is passed,
 		 * the API call will be asynchronous and the result will be passed via
-		 * callback(filename)
+		 * callback(filename).
 		 */
-		showSaveDialog(options: SaveDialogOptions, callback?: (filename: string) => void): string;
+		showSaveDialog(options: SaveDialogOptions, callback?: (filename: string, bookmark: string) => void): string;
 	}
 
 	interface Display {
@@ -2325,33 +2575,54 @@ declare namespace Electron {
 		 * download that can't be resumed. The state can be one of following:
 		 */
 		on(event: 'done', listener: (event: Event,
-			state: string) => void): this;
+			/**
+			 * Can be `completed`, `cancelled` or `interrupted`.
+			 */
+			state: ('completed' | 'cancelled' | 'interrupted')) => void): this;
 		once(event: 'done', listener: (event: Event,
-			state: string) => void): this;
+			/**
+			 * Can be `completed`, `cancelled` or `interrupted`.
+			 */
+			state: ('completed' | 'cancelled' | 'interrupted')) => void): this;
 		addListener(event: 'done', listener: (event: Event,
-			state: string) => void): this;
+			/**
+			 * Can be `completed`, `cancelled` or `interrupted`.
+			 */
+			state: ('completed' | 'cancelled' | 'interrupted')) => void): this;
 		removeListener(event: 'done', listener: (event: Event,
-			state: string) => void): this;
+			/**
+			 * Can be `completed`, `cancelled` or `interrupted`.
+			 */
+			state: ('completed' | 'cancelled' | 'interrupted')) => void): this;
 		/**
 		 * Emitted when the download has been updated and is not done. The state can be one
 		 * of following:
 		 */
 		on(event: 'updated', listener: (event: Event,
-			state: string) => void): this;
+			/**
+			 * Can be `progressing` or `interrupted`.
+			 */
+			state: ('progressing' | 'interrupted')) => void): this;
 		once(event: 'updated', listener: (event: Event,
-			state: string) => void): this;
+			/**
+			 * Can be `progressing` or `interrupted`.
+			 */
+			state: ('progressing' | 'interrupted')) => void): this;
 		addListener(event: 'updated', listener: (event: Event,
-			state: string) => void): this;
+			/**
+			 * Can be `progressing` or `interrupted`.
+			 */
+			state: ('progressing' | 'interrupted')) => void): this;
 		removeListener(event: 'updated', listener: (event: Event,
-			state: string) => void): this;
+			/**
+			 * Can be `progressing` or `interrupted`.
+			 */
+			state: ('progressing' | 'interrupted')) => void): this;
 		/**
 		 * Cancels the download operation.
 		 */
 		cancel(): void;
-		/**
-		 * Resumes Boolean - Whether the download can resume.
-		 */
-		canResume(): void;
+		canResume(): boolean;
 		getContentDisposition(): string;
 		getETag(): string;
 		/**
@@ -2491,6 +2762,38 @@ declare namespace Electron {
 		webgl2: string;
 	}
 
+	interface InAppPurchase extends EventEmitter {
+
+		// Docs: http://electron.atom.io/docs/api/in-app-purchase
+
+		/**
+		 * Emitted when one or more transactions have been updated.
+		 */
+		on(event: 'transactions-updated', listener: (event: Event,
+			/**
+			 * Array of transactions.
+			 */
+			transactions: Transaction[]) => void): this;
+		once(event: 'transactions-updated', listener: (event: Event,
+			/**
+			 * Array of transactions.
+			 */
+			transactions: Transaction[]) => void): this;
+		addListener(event: 'transactions-updated', listener: (event: Event,
+			/**
+			 * Array of transactions.
+			 */
+			transactions: Transaction[]) => void): this;
+		removeListener(event: 'transactions-updated', listener: (event: Event,
+			/**
+			 * Array of transactions.
+			 */
+			transactions: Transaction[]) => void): this;
+		canMakePayments(): boolean;
+		getReceiptURL(): string;
+		purchaseProduct(productID: string, quantity?: number, callback?: (isProductValid: boolean) => void): void;
+	}
+
 	class IncomingMessage extends EventEmitter {
 
 		// Docs: http://electron.atom.io/docs/api/incoming-message
@@ -2624,7 +2927,7 @@ declare namespace Electron {
 		/**
 		 * Removes all listeners, or those of the specified channel.
 		 */
-		removeAllListeners(channel?: string): this;
+		removeAllListeners(channel: string): this;
 		/**
 		 * Removes the specified listener from the listener array for the specified
 		 * channel.
@@ -2646,6 +2949,10 @@ declare namespace Electron {
 		 * renderer process, unless you know what you are doing you should never use it.
 		 */
 		sendSync(channel: string, ...args: any[]): any;
+		/**
+		 * Sends a message to a window with windowid via channel.
+		 */
+		sendTo(windowId: number, channel: string, ...args: any[]): void;
 		/**
 		 * Like ipcRenderer.send but the event will be sent to the <webview> element in the
 		 * host page instead of the main process.
@@ -2760,6 +3067,20 @@ declare namespace Electron {
 
 		// Docs: http://electron.atom.io/docs/api/menu
 
+		/**
+		 * Emitted when a popup is closed either manually or with menu.closePopup().
+		 */
+		on(event: 'menu-will-close', listener: (event: Event) => void): this;
+		once(event: 'menu-will-close', listener: (event: Event) => void): this;
+		addListener(event: 'menu-will-close', listener: (event: Event) => void): this;
+		removeListener(event: 'menu-will-close', listener: (event: Event) => void): this;
+		/**
+		 * Emitted when menu.popup() is called.
+		 */
+		on(event: 'menu-will-show', listener: (event: Event) => void): this;
+		once(event: 'menu-will-show', listener: (event: Event) => void): this;
+		addListener(event: 'menu-will-show', listener: (event: Event) => void): this;
+		removeListener(event: 'menu-will-show', listener: (event: Event) => void): this;
 		constructor();
 		/**
 		 * Generally, the template is just an array of options for constructing a MenuItem.
@@ -2772,7 +3093,7 @@ declare namespace Electron {
 		 * Note: The returned Menu instance doesn't support dynamic addition or removal of
 		 * menu items. Instance properties can still be dynamically modified.
 		 */
-		static getApplicationMenu(): Menu;
+		static getApplicationMenu(): Menu | null;
 		/**
 		 * Sends the action to the first responder of application. This is used for
 		 * emulating default macOS menu behaviors. Usually you would just use the role
@@ -2786,7 +3107,7 @@ declare namespace Electron {
 		 * Windows and Linux but has no effect on macOS. Note: This API has to be called
 		 * after the ready event of app module.
 		 */
-		static setApplicationMenu(menu: Menu): void;
+		static setApplicationMenu(menu: Menu | null): void;
 		/**
 		 * Appends the menuItem to the menu.
 		 */
@@ -2795,14 +3116,15 @@ declare namespace Electron {
 		 * Closes the context menu in the browserWindow.
 		 */
 		closePopup(browserWindow?: BrowserWindow): void;
+		getMenuItemById(id: string): MenuItem;
 		/**
 		 * Inserts the menuItem to the pos position of the menu.
 		 */
 		insert(pos: number, menuItem: MenuItem): void;
 		/**
-		 * Pops up this menu as a context menu in the browserWindow.
+		 * Pops up this menu as a context menu in the BrowserWindow.
 		 */
-		popup(browserWindow?: BrowserWindow, options?: PopupOptions): void;
+		popup(options: PopupOptions): void;
 		items: MenuItem[];
 	}
 
@@ -2848,6 +3170,13 @@ declare namespace Electron {
 		 * Creates a new NativeImage instance from dataURL.
 		 */
 		static createFromDataURL(dataURL: string): NativeImage;
+		/**
+		 * Creates a new NativeImage instance from the NSImage that maps to the given image
+		 * name. See NSImageName for a list of possible values. The hslShift is applied to
+		 * the image with the following rules This means that [-1, 0, 1] will make the
+		 * image completely white and [-1, 1, 0] will make the image completely black.
+		 */
+		static createFromNamedImage(imageName: string, hslShift: number[]): NativeImage;
 		/**
 		 * Creates a new NativeImage instance from a file located at path. This method
 		 * returns an empty image if the path does not exist, cannot be read, or is not a
@@ -2911,22 +3240,22 @@ declare namespace Electron {
 
 		on(event: 'action', listener: (event: Event,
 			/**
-			 * The index of the action that was activated
+			 * The index of the action that was activated.
 			 */
 			index: number) => void): this;
 		once(event: 'action', listener: (event: Event,
 			/**
-			 * The index of the action that was activated
+			 * The index of the action that was activated.
 			 */
 			index: number) => void): this;
 		addListener(event: 'action', listener: (event: Event,
 			/**
-			 * The index of the action that was activated
+			 * The index of the action that was activated.
 			 */
 			index: number) => void): this;
 		removeListener(event: 'action', listener: (event: Event,
 			/**
-			 * The index of the action that was activated
+			 * The index of the action that was activated.
 			 */
 			index: number) => void): this;
 		/**
@@ -2938,7 +3267,7 @@ declare namespace Electron {
 		removeListener(event: 'click', listener: (event: Event) => void): this;
 		/**
 		 * Emitted when the notification is closed by manual intervention from the user.
-		 * This event is not guarunteed to be emitted in all cases where the notification
+		 * This event is not guaranteed to be emitted in all cases where the notification
 		 * is closed.
 		 */
 		on(event: 'close', listener: (event: Event) => void): this;
@@ -2951,22 +3280,22 @@ declare namespace Electron {
 		 */
 		on(event: 'reply', listener: (event: Event,
 			/**
-			 * The string the user entered into the inline reply field
+			 * The string the user entered into the inline reply field.
 			 */
 			reply: string) => void): this;
 		once(event: 'reply', listener: (event: Event,
 			/**
-			 * The string the user entered into the inline reply field
+			 * The string the user entered into the inline reply field.
 			 */
 			reply: string) => void): this;
 		addListener(event: 'reply', listener: (event: Event,
 			/**
-			 * The string the user entered into the inline reply field
+			 * The string the user entered into the inline reply field.
 			 */
 			reply: string) => void): this;
 		removeListener(event: 'reply', listener: (event: Event,
 			/**
-			 * The string the user entered into the inline reply field
+			 * The string the user entered into the inline reply field.
 			 */
 			reply: string) => void): this;
 		/**
@@ -2980,11 +3309,17 @@ declare namespace Electron {
 		removeListener(event: 'show', listener: (event: Event) => void): this;
 		constructor(options: NotificationConstructorOptions);
 		static isSupported(): boolean;
+		/**
+		 * Dismisses the notification.
+		 */
+		close(): void;
 		/**
 		 * Immediately shows the notification to the user, please note this means unlike
 		 * the HTML5 Notification implementation, simply instantiating a new Notification
 		 * does not immediately show it to the user, you need to call this method before
-		 * the OS will display it.
+		 * the OS will display it. If the notification has been shown before, this method
+		 * will dismiss the previously shown notification and create a new one with
+		 * identical properties.
 		 */
 		show(): void;
 	}
@@ -3036,6 +3371,16 @@ declare namespace Electron {
 		once(event: 'resume', listener: Function): this;
 		addListener(event: 'resume', listener: Function): this;
 		removeListener(event: 'resume', listener: Function): this;
+		/**
+		 * Emitted when the system is about to reboot or shut down. If the event handler
+		 * invokes e.preventDefault(), Electron will attempt to delay system shutdown in
+		 * order for the app to exit cleanly. If e.preventDefault() is called, the app
+		 * should exit as soon as possible by calling something like app.quit().
+		 */
+		on(event: 'shutdown', listener: Function): this;
+		once(event: 'shutdown', listener: Function): this;
+		addListener(event: 'shutdown', listener: Function): this;
+		removeListener(event: 'shutdown', listener: Function): this;
 		/**
 		 * Emitted when the system is suspending.
 		 */
@@ -3118,6 +3463,11 @@ declare namespace Electron {
 		 * sends a new HTTP request as a response.
 		 */
 		interceptHttpProtocol(scheme: string, handler: (request: InterceptHttpProtocolRequest, callback: (redirectRequest: RedirectRequest) => void) => void, completion?: (error: Error) => void): void;
+		/**
+		 * Same as protocol.registerStreamProtocol, except that it replaces an existing
+		 * protocol handler.
+		 */
+		interceptStreamProtocol(scheme: string, handler: (request: InterceptStreamProtocolRequest, callback: (stream?: ReadableStream | StreamProtocolResponse) => void) => void, completion?: (error: Error) => void): void;
 		/**
 		 * Intercepts scheme protocol and uses handler as the protocol's new handler which
 		 * sends a String as a response.
@@ -3178,6 +3528,15 @@ declare namespace Electron {
 		 * the ready event of the app module gets emitted.
 		 */
 		registerStandardSchemes(schemes: string[], options?: RegisterStandardSchemesOptions): void;
+		/**
+		 * Registers a protocol of scheme that will send a Readable as a response. The
+		 * usage is similar to the other register{Any}Protocol, except that the callback
+		 * should be called with either a Readable object or an object that has the data,
+		 * statusCode, and headers properties. Example: It is possible to pass any object
+		 * that implements the readable stream API (emits data/end/error events). For
+		 * example, here's how a file could be returned:
+		 */
+		registerStreamProtocol(scheme: string, handler: (request: RegisterStreamProtocolRequest, callback: (stream?: ReadableStream | StreamProtocolResponse) => void) => void, completion?: (error: Error) => void): void;
 		/**
 		 * Registers a protocol of scheme that will send a String as a response. The usage
 		 * is the same with registerFileProtocol, except that the callback should be called
@@ -3380,7 +3739,7 @@ declare namespace Electron {
 		 * options, you have to ensure the Session with the partition has never been used
 		 * before. There is no way to change the options of an existing Session object.
 		 */
-		static fromPartition(partition: string, options: FromPartitionOptions): Session;
+		static fromPartition(partition: string, options?: FromPartitionOptions): Session;
 		/**
 		 * A Session object, the default session object of the app.
 		 */
@@ -3444,11 +3803,12 @@ declare namespace Electron {
 		 * Writes any unwritten DOMStorage data to disk.
 		 */
 		flushStorageData(): void;
-		getBlobData(identifier: string, callback: (result: Buffer) => void): Blob;
+		getBlobData(identifier: string, callback: (result: Buffer) => void): void;
 		/**
 		 * Callback is invoked with the session's current cache size.
 		 */
 		getCacheSize(callback: (size: number) => void): void;
+		getPreloads(): string[];
 		getUserAgent(): string;
 		/**
 		 * Resolves the proxy information for url. The callback will be called with
@@ -3471,9 +3831,14 @@ declare namespace Electron {
 		/**
 		 * Sets the handler which can be used to respond to permission requests for the
 		 * session. Calling callback(true) will allow the permission and callback(false)
-		 * will reject it.
+		 * will reject it. To clear the handler, call setPermissionRequestHandler(null).
+		 */
+		setPermissionRequestHandler(handler: (webContents: WebContents, permission: string, callback: (permissionGranted: boolean) => void, details: PermissionRequestHandlerDetails) => void | null): void;
+		/**
+		 * Adds scripts that will be executed on ALL web contents that are associated with
+		 * this session just before normal preload scripts run.
 		 */
-		setPermissionRequestHandler(handler: (webContents: WebContents, permission: string, callback: (permissionGranted: boolean) => void) => void): void;
+		setPreloads(preloads: string[]): void;
 		/**
 		 * Sets the proxy settings. When pacScript and proxyRules are provided together,
 		 * the proxyRules option is ignored and pacScript configuration is applied. The
@@ -3578,6 +3943,24 @@ declare namespace Electron {
 		width: number;
 	}
 
+	interface StreamProtocolResponse {
+
+		// Docs: http://electron.atom.io/docs/api/structures/stream-protocol-response
+
+		/**
+		 * A Node.js readable stream representing the response body
+		 */
+		data: ReadableStream;
+		/**
+		 * An object containing the response headers
+		 */
+		headers: Headers;
+		/**
+		 * The HTTP response code
+		 */
+		statusCode: number;
+	}
+
 	interface SystemPreferences extends EventEmitter {
 
 		// Docs: http://electron.atom.io/docs/api/system-preferences
@@ -3633,7 +4016,7 @@ declare namespace Electron {
 		getAccentColor(): string;
 		getColor(color: '3d-dark-shadow' | '3d-face' | '3d-highlight' | '3d-light' | '3d-shadow' | 'active-border' | 'active-caption' | 'active-caption-gradient' | 'app-workspace' | 'button-text' | 'caption-text' | 'desktop' | 'disabled-text' | 'highlight' | 'highlight-text' | 'hotlight' | 'inactive-border' | 'inactive-caption' | 'inactive-caption-gradient' | 'inactive-caption-text' | 'info-background' | 'info-text' | 'menu' | 'menu-highlight' | 'menubar' | 'menu-text' | 'scrollbar' | 'window' | 'window-frame' | 'window-text'): string;
 		/**
-		 * This API uses NSUserDefaults on macOS. Some popular key and types are:
+		 * Some popular key and types are:
 		 */
 		getUserDefault(key: string, type: 'string' | 'boolean' | 'integer' | 'float' | 'double' | 'url' | 'array' | 'dictionary'): any;
 		/**
@@ -3655,14 +4038,22 @@ declare namespace Electron {
 		 */
 		postNotification(event: string, userInfo: any): void;
 		/**
-		 * Set the value of key in system preferences. Note that type should match actual
-		 * type of value. An exception is thrown if they don't. This API uses
-		 * NSUserDefaults on macOS. Some popular key and types are:
+		 * Add the specified defaults to your application's NSUserDefaults.
+		 */
+		registerDefaults(defaults: any): void;
+		/**
+		 * Removes the key in NSUserDefaults. This can be used to restore the default or
+		 * global value of a key previously set with setUserDefault.
+		 */
+		removeUserDefault(key: string): void;
+		/**
+		 * Set the value of key in NSUserDefaults. Note that type should match actual type
+		 * of value. An exception is thrown if they don't. Some popular key and types are:
 		 */
 		setUserDefault(key: string, type: string, value: string): void;
 		/**
 		 * Same as subscribeNotification, but uses NSNotificationCenter for local defaults.
-		 * This is necessary for events such as NSUserDefaultsDidChangeNotification
+		 * This is necessary for events such as NSUserDefaultsDidChangeNotification.
 		 */
 		subscribeLocalNotification(event: string, callback: (event: string, userInfo: any) => void): void;
 		/**
@@ -3830,7 +4221,7 @@ declare namespace Electron {
 		// Docs: http://electron.atom.io/docs/api/touch-bar
 
 		constructor(options: TouchBarConstructorOptions);
-		escapeItem: any;
+		escapeItem: (TouchBarButton | TouchBarColorPicker | TouchBarGroup | TouchBarLabel | TouchBarPopover | TouchBarScrubber | TouchBarSegmentedControl | TouchBarSlider | TouchBarSpacer | null);
 		static TouchBarButton: typeof TouchBarButton;
 		static TouchBarColorPicker: typeof TouchBarColorPicker;
 		static TouchBarGroup: typeof TouchBarGroup;
@@ -3842,6 +4233,23 @@ declare namespace Electron {
 		static TouchBarSpacer: typeof TouchBarSpacer;
 	}
 
+	interface Transaction {
+
+		// Docs: http://electron.atom.io/docs/api/structures/transaction
+
+		errorCode: number;
+		errorMessage: string;
+		originalTransactionIdentifier: string;
+		payment: Payment;
+		transactionDate: string;
+		transactionIdentifier: string;
+		/**
+		 * The transaction sate ("purchasing", "purchased", "failed", "restored", or
+		 * "deferred")
+		 */
+		transactionState: string;
+	}
+
 	class Tray extends EventEmitter {
 
 		// Docs: http://electron.atom.io/docs/api/tray
@@ -3873,45 +4281,61 @@ declare namespace Electron {
 		 */
 		on(event: 'click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
-			bounds: Rectangle) => void): this;
+			bounds: Rectangle,
+			/**
+			 * The position of the event.
+			 */
+			position: Point) => void): this;
 		once(event: 'click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
-			bounds: Rectangle) => void): this;
+			bounds: Rectangle,
+			/**
+			 * The position of the event.
+			 */
+			position: Point) => void): this;
 		addListener(event: 'click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
-			bounds: Rectangle) => void): this;
+			bounds: Rectangle,
+			/**
+			 * The position of the event.
+			 */
+			position: Point) => void): this;
 		removeListener(event: 'click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
-			bounds: Rectangle) => void): this;
+			bounds: Rectangle,
+			/**
+			 * The position of the event.
+			 */
+			position: Point) => void): this;
 		/**
 		 * Emitted when the tray icon is double clicked.
 		 */
 		on(event: 'double-click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
 			bounds: Rectangle) => void): this;
 		once(event: 'double-click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
 			bounds: Rectangle) => void): this;
 		addListener(event: 'double-click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
 			bounds: Rectangle) => void): this;
 		removeListener(event: 'double-click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
 			bounds: Rectangle) => void): this;
 		/**
@@ -3970,22 +4394,22 @@ declare namespace Electron {
 		 */
 		on(event: 'drop-text', listener: (event: Event,
 			/**
-			 * the dropped text string
+			 * the dropped text string.
 			 */
 			text: string) => void): this;
 		once(event: 'drop-text', listener: (event: Event,
 			/**
-			 * the dropped text string
+			 * the dropped text string.
 			 */
 			text: string) => void): this;
 		addListener(event: 'drop-text', listener: (event: Event,
 			/**
-			 * the dropped text string
+			 * the dropped text string.
 			 */
 			text: string) => void): this;
 		removeListener(event: 'drop-text', listener: (event: Event,
 			/**
-			 * the dropped text string
+			 * the dropped text string.
 			 */
 			text: string) => void): this;
 		/**
@@ -3993,22 +4417,22 @@ declare namespace Electron {
 		 */
 		on(event: 'mouse-enter', listener: (event: Event,
 			/**
-			 * The position of the event
+			 * The position of the event.
 			 */
 			position: Point) => void): this;
 		once(event: 'mouse-enter', listener: (event: Event,
 			/**
-			 * The position of the event
+			 * The position of the event.
 			 */
 			position: Point) => void): this;
 		addListener(event: 'mouse-enter', listener: (event: Event,
 			/**
-			 * The position of the event
+			 * The position of the event.
 			 */
 			position: Point) => void): this;
 		removeListener(event: 'mouse-enter', listener: (event: Event,
 			/**
-			 * The position of the event
+			 * The position of the event.
 			 */
 			position: Point) => void): this;
 		/**
@@ -4016,22 +4440,45 @@ declare namespace Electron {
 		 */
 		on(event: 'mouse-leave', listener: (event: Event,
 			/**
-			 * The position of the event
+			 * The position of the event.
 			 */
 			position: Point) => void): this;
 		once(event: 'mouse-leave', listener: (event: Event,
 			/**
-			 * The position of the event
+			 * The position of the event.
 			 */
 			position: Point) => void): this;
 		addListener(event: 'mouse-leave', listener: (event: Event,
 			/**
-			 * The position of the event
+			 * The position of the event.
 			 */
 			position: Point) => void): this;
 		removeListener(event: 'mouse-leave', listener: (event: Event,
 			/**
-			 * The position of the event
+			 * The position of the event.
+			 */
+			position: Point) => void): this;
+		/**
+		 * Emitted when the mouse moves in the tray icon.
+		 */
+		on(event: 'mouse-move', listener: (event: Event,
+			/**
+			 * The position of the event.
+			 */
+			position: Point) => void): this;
+		once(event: 'mouse-move', listener: (event: Event,
+			/**
+			 * The position of the event.
+			 */
+			position: Point) => void): this;
+		addListener(event: 'mouse-move', listener: (event: Event,
+			/**
+			 * The position of the event.
+			 */
+			position: Point) => void): this;
+		removeListener(event: 'mouse-move', listener: (event: Event,
+			/**
+			 * The position of the event.
 			 */
 			position: Point) => void): this;
 		/**
@@ -4039,22 +4486,22 @@ declare namespace Electron {
 		 */
 		on(event: 'right-click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
 			bounds: Rectangle) => void): this;
 		once(event: 'right-click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
 			bounds: Rectangle) => void): this;
 		addListener(event: 'right-click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
 			bounds: Rectangle) => void): this;
 		removeListener(event: 'right-click', listener: (event: Event,
 			/**
-			 * The bounds of tray icon
+			 * The bounds of tray icon.
 			 */
 			bounds: Rectangle) => void): this;
 		constructor(image: NativeImage | string);
@@ -4096,7 +4543,8 @@ declare namespace Electron {
 		 */
 		setPressedImage(image: NativeImage): void;
 		/**
-		 * Sets the title displayed aside of the tray icon in the status bar.
+		 * Sets the title displayed aside of the tray icon in the status bar (Support ANSI
+		 * colors).
 		 */
 		setTitle(title: string): void;
 		/**
@@ -4150,7 +4598,7 @@ declare namespace Electron {
 		 */
 		length: number;
 		/**
-		 * Last Modification time in number of seconds sine the UNIX epoch.
+		 * Last Modification time in number of seconds since the UNIX epoch.
 		 */
 		modificationTime: number;
 		/**
@@ -4176,7 +4624,7 @@ declare namespace Electron {
 		 */
 		length: number;
 		/**
-		 * Last Modification time in number of seconds sine the UNIX epoch.
+		 * Last Modification time in number of seconds since the UNIX epoch.
 		 */
 		modificationTime: number;
 		/**
@@ -4217,22 +4665,22 @@ declare namespace Electron {
 		 */
 		on(event: 'before-input-event', listener: (event: Event,
 			/**
-			 * Input properties
+			 * Input properties.
 			 */
 			input: Input) => void): this;
 		once(event: 'before-input-event', listener: (event: Event,
 			/**
-			 * Input properties
+			 * Input properties.
 			 */
 			input: Input) => void): this;
 		addListener(event: 'before-input-event', listener: (event: Event,
 			/**
-			 * Input properties
+			 * Input properties.
 			 */
 			input: Input) => void): this;
 		removeListener(event: 'before-input-event', listener: (event: Event,
 			/**
-			 * Input properties
+			 * Input properties.
 			 */
 			input: Input) => void): this;
 		/**
@@ -4242,7 +4690,7 @@ declare namespace Electron {
 		on(event: 'certificate-error', listener: (event: Event,
 			url: string,
 			/**
-			 * The error code
+			 * The error code.
 			 */
 			error: string,
 			certificate: Certificate,
@@ -4250,7 +4698,7 @@ declare namespace Electron {
 		once(event: 'certificate-error', listener: (event: Event,
 			url: string,
 			/**
-			 * The error code
+			 * The error code.
 			 */
 			error: string,
 			certificate: Certificate,
@@ -4258,7 +4706,7 @@ declare namespace Electron {
 		addListener(event: 'certificate-error', listener: (event: Event,
 			url: string,
 			/**
-			 * The error code
+			 * The error code.
 			 */
 			error: string,
 			certificate: Certificate,
@@ -4266,11 +4714,31 @@ declare namespace Electron {
 		removeListener(event: 'certificate-error', listener: (event: Event,
 			url: string,
 			/**
-			 * The error code
+			 * The error code.
 			 */
 			error: string,
 			certificate: Certificate,
 			callback: (isTrusted: boolean) => void) => void): this;
+		/**
+		 * Emitted when the associated window logs a console message. Will not be emitted
+		 * for windows with offscreen rendering enabled.
+		 */
+		on(event: 'console-message', listener: (level: number,
+			message: string,
+			line: number,
+			sourceId: string) => void): this;
+		once(event: 'console-message', listener: (level: number,
+			message: string,
+			line: number,
+			sourceId: string) => void): this;
+		addListener(event: 'console-message', listener: (level: number,
+			message: string,
+			line: number,
+			sourceId: string) => void): this;
+		removeListener(event: 'console-message', listener: (level: number,
+			message: string,
+			line: number,
+			sourceId: string) => void): this;
 		/**
 		 * Emitted when there is a new context menu that needs to be handled.
 		 */
@@ -4300,69 +4768,69 @@ declare namespace Electron {
 		 * nwse-resize, col-resize, row-resize, m-panning, e-panning, n-panning,
 		 * ne-panning, nw-panning, s-panning, se-panning, sw-panning, w-panning, move,
 		 * vertical-text, cell, context-menu, alias, progress, nodrop, copy, none,
-		 * not-allowed, zoom-in, zoom-out, grab, grabbing, custom. If the type parameter is
-		 * custom, the image parameter will hold the custom cursor image in a NativeImage,
-		 * and scale, size and hotspot will hold additional information about the custom
-		 * cursor.
+		 * not-allowed, zoom-in, zoom-out, grab, grabbing or custom. If the type parameter
+		 * is custom, the image parameter will hold the custom cursor image in a
+		 * NativeImage, and scale, size and hotspot will hold additional information about
+		 * the custom cursor.
 		 */
 		on(event: 'cursor-changed', listener: (event: Event,
 			type: string,
 			image?: NativeImage,
 			/**
-			 * scaling factor for the custom cursor
+			 * scaling factor for the custom cursor.
 			 */
 			scale?: number,
 			/**
-			 * the size of the `image`
+			 * the size of the `image`.
 			 */
 			size?: Size,
 			/**
-			 * coordinates of the custom cursor's hotspot
+			 * coordinates of the custom cursor's hotspot.
 			 */
 			hotspot?: Point) => void): this;
 		once(event: 'cursor-changed', listener: (event: Event,
 			type: string,
 			image?: NativeImage,
 			/**
-			 * scaling factor for the custom cursor
+			 * scaling factor for the custom cursor.
 			 */
 			scale?: number,
 			/**
-			 * the size of the `image`
+			 * the size of the `image`.
 			 */
 			size?: Size,
 			/**
-			 * coordinates of the custom cursor's hotspot
+			 * coordinates of the custom cursor's hotspot.
 			 */
 			hotspot?: Point) => void): this;
 		addListener(event: 'cursor-changed', listener: (event: Event,
 			type: string,
 			image?: NativeImage,
 			/**
-			 * scaling factor for the custom cursor
+			 * scaling factor for the custom cursor.
 			 */
 			scale?: number,
 			/**
-			 * the size of the `image`
+			 * the size of the `image`.
 			 */
 			size?: Size,
 			/**
-			 * coordinates of the custom cursor's hotspot
+			 * coordinates of the custom cursor's hotspot.
 			 */
 			hotspot?: Point) => void): this;
 		removeListener(event: 'cursor-changed', listener: (event: Event,
 			type: string,
 			image?: NativeImage,
 			/**
-			 * scaling factor for the custom cursor
+			 * scaling factor for the custom cursor.
 			 */
 			scale?: number,
 			/**
-			 * the size of the `image`
+			 * the size of the `image`.
 			 */
 			size?: Size,
 			/**
-			 * coordinates of the custom cursor's hotspot
+			 * coordinates of the custom cursor's hotspot.
 			 */
 			hotspot?: Point) => void): this;
 		/**
@@ -4400,14 +4868,53 @@ declare namespace Electron {
 		once(event: 'devtools-reload-page', listener: Function): this;
 		addListener(event: 'devtools-reload-page', listener: Function): this;
 		removeListener(event: 'devtools-reload-page', listener: Function): this;
+		/**
+		 * Emitted when a <webview> has been attached to this web contents.
+		 */
+		on(event: 'did-attach-webview', listener: (event: Event,
+			/**
+			 * The guest web contents that is used by the `<webview>`.
+			 */
+			webContents: WebContents) => void): this;
+		once(event: 'did-attach-webview', listener: (event: Event,
+			/**
+			 * The guest web contents that is used by the `<webview>`.
+			 */
+			webContents: WebContents) => void): this;
+		addListener(event: 'did-attach-webview', listener: (event: Event,
+			/**
+			 * The guest web contents that is used by the `<webview>`.
+			 */
+			webContents: WebContents) => void): this;
+		removeListener(event: 'did-attach-webview', listener: (event: Event,
+			/**
+			 * The guest web contents that is used by the `<webview>`.
+			 */
+			webContents: WebContents) => void): this;
 		/**
 		 * Emitted when a page's theme color changes. This is usually due to encountering a
 		 * meta tag:
 		 */
-		on(event: 'did-change-theme-color', listener: Function): this;
-		once(event: 'did-change-theme-color', listener: Function): this;
-		addListener(event: 'did-change-theme-color', listener: Function): this;
-		removeListener(event: 'did-change-theme-color', listener: Function): this;
+		on(event: 'did-change-theme-color', listener: (event: Event,
+			/**
+			 * Theme color is in format of '#rrggbb'. It is `null` when no theme color is set.
+			 */
+			color: string | null) => void): this;
+		once(event: 'did-change-theme-color', listener: (event: Event,
+			/**
+			 * Theme color is in format of '#rrggbb'. It is `null` when no theme color is set.
+			 */
+			color: string | null) => void): this;
+		addListener(event: 'did-change-theme-color', listener: (event: Event,
+			/**
+			 * Theme color is in format of '#rrggbb'. It is `null` when no theme color is set.
+			 */
+			color: string | null) => void): this;
+		removeListener(event: 'did-change-theme-color', listener: (event: Event,
+			/**
+			 * Theme color is in format of '#rrggbb'. It is `null` when no theme color is set.
+			 */
+			color: string | null) => void): this;
 		/**
 		 * This event is like did-finish-load but emitted when the load failed or was
 		 * cancelled, e.g. window.stop() is invoked. The full list of error codes and their
@@ -4643,7 +5150,7 @@ declare namespace Electron {
 			 */
 			disposition: ('default' | 'foreground-tab' | 'background-tab' | 'new-window' | 'save-to-disk' | 'other'),
 			/**
-			 * The options which will be used for creating the new `BrowserWindow`.
+			 * The options which will be used for creating the new .
 			 */
 			options: any,
 			/**
@@ -4660,7 +5167,7 @@ declare namespace Electron {
 			 */
 			disposition: ('default' | 'foreground-tab' | 'background-tab' | 'new-window' | 'save-to-disk' | 'other'),
 			/**
-			 * The options which will be used for creating the new `BrowserWindow`.
+			 * The options which will be used for creating the new .
 			 */
 			options: any,
 			/**
@@ -4677,7 +5184,7 @@ declare namespace Electron {
 			 */
 			disposition: ('default' | 'foreground-tab' | 'background-tab' | 'new-window' | 'save-to-disk' | 'other'),
 			/**
-			 * The options which will be used for creating the new `BrowserWindow`.
+			 * The options which will be used for creating the new .
 			 */
 			options: any,
 			/**
@@ -4694,7 +5201,7 @@ declare namespace Electron {
 			 */
 			disposition: ('default' | 'foreground-tab' | 'background-tab' | 'new-window' | 'save-to-disk' | 'other'),
 			/**
-			 * The options which will be used for creating the new `BrowserWindow`.
+			 * The options which will be used for creating the new .
 			 */
 			options: any,
 			/**
@@ -4707,22 +5214,22 @@ declare namespace Electron {
 		 */
 		on(event: 'page-favicon-updated', listener: (event: Event,
 			/**
-			 * Array of URLs
+			 * Array of URLs.
 			 */
 			favicons: string[]) => void): this;
 		once(event: 'page-favicon-updated', listener: (event: Event,
 			/**
-			 * Array of URLs
+			 * Array of URLs.
 			 */
 			favicons: string[]) => void): this;
 		addListener(event: 'page-favicon-updated', listener: (event: Event,
 			/**
-			 * Array of URLs
+			 * Array of URLs.
 			 */
 			favicons: string[]) => void): this;
 		removeListener(event: 'page-favicon-updated', listener: (event: Event,
 			/**
-			 * Array of URLs
+			 * Array of URLs.
 			 */
 			favicons: string[]) => void): this;
 		/**
@@ -4771,8 +5278,8 @@ declare namespace Electron {
 		/**
 		 * Emitted when bluetooth device needs to be selected on call to
 		 * navigator.bluetooth.requestDevice. To use navigator.bluetooth api webBluetooth
-		 * should be enabled.  If event.preventDefault is not called, first available
-		 * device will be selected. callback should be called with deviceId to be selected,
+		 * should be enabled. If event.preventDefault is not called, first available device
+		 * will be selected. callback should be called with deviceId to be selected,
 		 * passing empty string to callback will cancel the request.
 		 */
 		on(event: 'select-bluetooth-device', listener: (event: Event,
@@ -4935,13 +5442,13 @@ declare namespace Electron {
 		 * called with callback(image). The image is an instance of NativeImage that stores
 		 * data of the snapshot. Omitting rect will capture the whole visible page.
 		 */
-		capturePage(rect: Rectangle, callback: (image: NativeImage) => void): void;
+		capturePage(callback: (image: NativeImage) => void): void;
 		/**
 		 * Captures a snapshot of the page within rect. Upon completion callback will be
 		 * called with callback(image). The image is an instance of NativeImage that stores
 		 * data of the snapshot. Omitting rect will capture the whole visible page.
 		 */
-		capturePage(callback: (image: NativeImage) => void): void;
+		capturePage(rect: Rectangle, callback: (image: NativeImage) => void): void;
 		/**
 		 * Clears the navigation history.
 		 */
@@ -4988,16 +5495,15 @@ declare namespace Electron {
 		 * requestFullScreen can only be invoked by a gesture from the user. Setting
 		 * userGesture to true will remove this limitation. If the result of the executed
 		 * code is a promise the callback result will be the resolved value of the promise.
-		 *  We recommend that you use the returned Promise to handle code that results in a
+		 * We recommend that you use the returned Promise to handle code that results in a
 		 * Promise.
 		 */
 		executeJavaScript(code: string, userGesture?: boolean, callback?: (result: any) => void): Promise<any>;
 		/**
-		 * Starts a request to find all matches for the text in the web page and returns an
-		 * Integer representing the request id used for the request. The result of the
-		 * request can be obtained by subscribing to found-in-page event.
+		 * Starts a request to find all matches for the text in the web page. The result of
+		 * the request can be obtained by subscribing to found-in-page event.
 		 */
-		findInPage(text: string, options?: FindInPageOptions): void;
+		findInPage(text: string, options?: FindInPageOptions): number;
 		/**
 		 * Focuses the web page.
 		 */
@@ -5076,6 +5582,12 @@ declare namespace Electron {
 		isOffscreen(): boolean;
 		isPainting(): boolean;
 		isWaitingForResponse(): boolean;
+		/**
+		 * Loads the given file in the window, filePath should be a path to an HTML file
+		 * relative to the root of your application.  For instance an app structure like
+		 * this: Would require code like this
+		 */
+		loadFile(filePath: string): void;
 		/**
 		 * Loads the url in the window. The url must contain the protocol prefix, e.g. the
 		 * http:// or file://. If the load should bypass http cache then use the pragma
@@ -5083,7 +5595,9 @@ declare namespace Electron {
 		 */
 		loadURL(url: string, options?: LoadURLOptions): void;
 		/**
-		 * Opens the devtools.
+		 * Opens the devtools. When contents is a <webview> tag, the mode would be detach
+		 * by default, explicitly passing an empty mode can force using last used dock
+		 * state.
 		 */
 		openDevTools(options?: OpenDevToolsOptions): void;
 		/**
@@ -5101,7 +5615,7 @@ declare namespace Electron {
 		 * webContents.print({silent: false, printBackground: false, deviceName: ''}). Use
 		 * page-break-before: always; CSS style to force to print to a new page.
 		 */
-		print(options?: PrintOptions): void;
+		print(options?: PrintOptions, callback?: (success: boolean) => void): void;
 		/**
 		 * Prints window's web page as PDF with Chromium's preview printing custom
 		 * settings. The callback will be called with callback(error, data) on completion.
@@ -5160,6 +5674,19 @@ declare namespace Electron {
 		 * Mute the audio on the current web page.
 		 */
 		setAudioMuted(muted: boolean): void;
+		/**
+		 * Uses the devToolsWebContents as the target WebContents to show devtools. The
+		 * devToolsWebContents must not have done any navigation, and it should not be used
+		 * for other purposes after the call. By default Electron manages the devtools by
+		 * creating an internal WebContents with native view, which developers have very
+		 * limited control of. With the setDevToolsWebContents method, developers can use
+		 * any WebContents to show the devtools in it, including BrowserWindow, BrowserView
+		 * and <webview> tag. Note that closing the devtools does not destroy the
+		 * devToolsWebContents, it is caller's responsibility to destroy
+		 * devToolsWebContents. An example of showing devtools in a <webview> tag: An
+		 * example of showing devtools in a BrowserWindow:
+		 */
+		setDevToolsWebContents(devToolsWebContents: WebContents): void;
 		/**
 		 * If offscreen rendering is enabled sets the frame rate to the specified number.
 		 * Only values between 1 and 60 are accepted.
@@ -5187,7 +5714,7 @@ declare namespace Electron {
 		setVisualZoomLevelLimits(minimumLevel: number, maximumLevel: number): void;
 		/**
 		 * Setting the WebRTC IP handling policy allows you to control which IPs are
-		 * exposed via WebRTC.  See BrowserLeaks for more details.
+		 * exposed via WebRTC. See BrowserLeaks for more details.
 		 */
 		setWebRTCIPHandlingPolicy(policy: 'default' | 'default_public_interface_only' | 'default_public_and_private_interfaces' | 'disable_non_proxied_udp'): void;
 		/**
@@ -5198,14 +5725,10 @@ declare namespace Electron {
 		/**
 		 * Changes the zoom level to the specified level. The original size is 0 and each
 		 * increment above or below represents zooming 20% larger or smaller to default
-		 * limits of 300% and 50% of original size, respectively.
+		 * limits of 300% and 50% of original size, respectively. The formula for this is
+		 * scale := 1.2 ^ level.
 		 */
 		setZoomLevel(level: number): void;
-		/**
-		 * Deprecated: Call setVisualZoomLevelLimits instead to set the visual zoom level
-		 * limits. This method will be removed in Electron 2.0.
-		 */
-		setZoomLevelLimits(minimumLevel: number, maximumLevel: number): void;
 		/**
 		 * Shows pop-up dictionary that searches the selected word on the page.
 		 */
@@ -5276,6 +5799,10 @@ declare namespace Electron {
 		 * userGesture to true will remove this limitation.
 		 */
 		executeJavaScript(code: string, userGesture?: boolean, callback?: (result: any) => void): Promise<any>;
+		/**
+		 * Work like executeJavaScript but evaluates scripts in isolated context.
+		 */
+		executeJavaScriptInIsolatedWorld(worldId: number, scripts: WebSource[], userGesture?: boolean, callback?: (result: any) => void): void;
 		/**
 		 * Returns an object describing usage information of Blink's internal memory
 		 * caches. This will generate:
@@ -5305,6 +5832,18 @@ declare namespace Electron {
 		 * cannot be corrupted by active network attackers.
 		 */
 		registerURLSchemeAsSecure(scheme: string): void;
+		/**
+		 * Set the content security policy of the isolated world.
+		 */
+		setIsolatedWorldContentSecurityPolicy(worldId: number, csp: string): void;
+		/**
+		 * Set the name of the isolated world. Useful in devtools.
+		 */
+		setIsolatedWorldHumanReadableName(worldId: number, name: string): void;
+		/**
+		 * Set the security origin of the isolated world.
+		 */
+		setIsolatedWorldSecurityOrigin(worldId: number, securityOrigin: string): void;
 		/**
 		 * Sets the maximum and minimum layout-based (i.e. non-visual) zoom level.
 		 */
@@ -5330,22 +5869,28 @@ declare namespace Electron {
 		 * limits of 300% and 50% of original size, respectively.
 		 */
 		setZoomLevel(level: number): void;
-		/**
-		 * Deprecated: Call setVisualZoomLevelLimits instead to set the visual zoom level
-		 * limits. This method will be removed in Electron 2.0.
-		 */
-		setZoomLevelLimits(minimumLevel: number, maximumLevel: number): void;
 	}
 
 	class WebRequest extends EventEmitter {
 
 		// Docs: http://electron.atom.io/docs/api/web-request
 
+		/**
+		 * The listener will be called with listener(details) when a server initiated
+		 * redirect is about to occur.
+		 */
+		onBeforeRedirect(listener: (details: OnBeforeRedirectDetails) => void): void;
 		/**
 		 * The listener will be called with listener(details) when a server initiated
 		 * redirect is about to occur.
 		 */
 		onBeforeRedirect(filter: OnBeforeRedirectFilter, listener: (details: OnBeforeRedirectDetails) => void): void;
+		/**
+		 * The listener will be called with listener(details, callback) when a request is
+		 * about to occur. The uploadData is an array of UploadData objects. The callback
+		 * has to be called with an response object.
+		 */
+		onBeforeRequest(listener: (details: OnBeforeRequestDetails, callback: (response: Response) => void) => void): void;
 		/**
 		 * The listener will be called with listener(details, callback) when a request is
 		 * about to occur. The uploadData is an array of UploadData objects. The callback
@@ -5359,10 +5904,25 @@ declare namespace Electron {
 		 * has to be called with an response object.
 		 */
 		onBeforeSendHeaders(filter: OnBeforeSendHeadersFilter, listener: Function): void;
+		/**
+		 * The listener will be called with listener(details, callback) before sending an
+		 * HTTP request, once the request headers are available. This may occur after a TCP
+		 * connection is made to the server, but before any http data is sent. The callback
+		 * has to be called with an response object.
+		 */
+		onBeforeSendHeaders(listener: Function): void;
 		/**
 		 * The listener will be called with listener(details) when a request is completed.
 		 */
 		onCompleted(filter: OnCompletedFilter, listener: (details: OnCompletedDetails) => void): void;
+		/**
+		 * The listener will be called with listener(details) when a request is completed.
+		 */
+		onCompleted(listener: (details: OnCompletedDetails) => void): void;
+		/**
+		 * The listener will be called with listener(details) when an error occurs.
+		 */
+		onErrorOccurred(listener: (details: OnErrorOccurredDetails) => void): void;
 		/**
 		 * The listener will be called with listener(details) when an error occurs.
 		 */
@@ -5373,6 +5933,18 @@ declare namespace Electron {
 		 * response object.
 		 */
 		onHeadersReceived(filter: OnHeadersReceivedFilter, listener: Function): void;
+		/**
+		 * The listener will be called with listener(details, callback) when HTTP response
+		 * headers of a request have been received. The callback has to be called with an
+		 * response object.
+		 */
+		onHeadersReceived(listener: Function): void;
+		/**
+		 * The listener will be called with listener(details) when first byte of the
+		 * response body is received. For HTTP requests, this means that the status line
+		 * and response headers are available.
+		 */
+		onResponseStarted(listener: (details: OnResponseStartedDetails) => void): void;
 		/**
 		 * The listener will be called with listener(details) when first byte of the
 		 * response body is received. For HTTP requests, this means that the status line
@@ -5385,6 +5957,24 @@ declare namespace Electron {
 		 * response are visible by the time this listener is fired.
 		 */
 		onSendHeaders(filter: OnSendHeadersFilter, listener: (details: OnSendHeadersDetails) => void): void;
+		/**
+		 * The listener will be called with listener(details) just before a request is
+		 * going to be sent to the server, modifications of previous onBeforeSendHeaders
+		 * response are visible by the time this listener is fired.
+		 */
+		onSendHeaders(listener: (details: OnSendHeadersDetails) => void): void;
+	}
+
+	interface WebSource {
+
+		// Docs: http://electron.atom.io/docs/api/structures/web-source
+
+		code: string;
+		/**
+		 * Default is 1.
+		 */
+		startLine?: number;
+		url?: string;
 	}
 
 	interface WebviewTag extends HTMLElement {
@@ -5575,6 +6165,10 @@ declare namespace Electron {
 		 */
 		addEventListener(event: 'devtools-focused', listener: (event: Event) => void, useCapture?: boolean): this;
 		removeEventListener(event: 'devtools-focused', listener: (event: Event) => void): this;
+		addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;
+		addEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
+		removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLElement, ev: HTMLElementEventMap[K]) => any, useCapture?: boolean): void;
+		removeEventListener(type: string, listener: EventListenerOrEventListenerObject, useCapture?: boolean): void;
 		canGoBack(): boolean;
 		canGoForward(): boolean;
 		canGoToOffset(offset: number): boolean;
@@ -5613,13 +6207,12 @@ declare namespace Electron {
 		 * context in the page. HTML APIs like requestFullScreen, which require user
 		 * action, can take advantage of this option for automation.
 		 */
-		executeJavaScript(code: string, userGesture: boolean, callback?: (result: any) => void): void;
+		executeJavaScript(code: string, userGesture?: boolean, callback?: (result: any) => void): void;
 		/**
-		 * Starts a request to find all matches for the text in the web page and returns an
-		 * Integer representing the request id used for the request. The result of the
-		 * request can be obtained by subscribing to found-in-page event.
+		 * Starts a request to find all matches for the text in the web page. The result of
+		 * the request can be obtained by subscribing to found-in-page event.
 		 */
-		findInPage(text: string, options?: FindInPageOptions): void;
+		findInPage(text: string, options?: FindInPageOptions): number;
 		getTitle(): string;
 		getURL(): string;
 		getUserAgent(): string;
@@ -6062,6 +6655,10 @@ declare namespace Electron {
 		 * is true.
 		 */
 		fullscreenable?: boolean;
+		/**
+		 * Use pre-Lion fullscreen on macOS. Default is false.
+		 */
+		simpleFullscreen?: boolean;
 		/**
 		 * Whether to show the window in taskbar. Default is false.
 		 */
@@ -6115,7 +6712,7 @@ declare namespace Electron {
 		 */
 		enableLargerThanScreen?: boolean;
 		/**
-		 * Window's background color as Hexadecimal value, like #66CD00 or #FFF or
+		 * Window's background color as a hexadecimal value, like #66CD00 or #FFF or
 		 * #80FFFFFF (alpha is supported). Default is #FFF (white).
 		 */
 		backgroundColor?: string;
@@ -6124,6 +6721,11 @@ declare namespace Electron {
 		 * is true.
 		 */
 		hasShadow?: boolean;
+		/**
+		 * Set the initial opacity of the window, between 0.0 (fully transparent) and 1.0
+		 * (fully opaque). This is only implemented on Windows and macOS.
+		 */
+		opacity?: number;
 		/**
 		 * Forces using dark theme for the window, only works on some GTK+3 desktop
 		 * environments. Default is false.
@@ -6140,9 +6742,9 @@ declare namespace Electron {
 		/**
 		 * The style of window title bar. Default is default. Possible values are:
 		 */
-		titleBarStyle?: ('default' | 'hidden' | 'hidden-inset' | 'hiddenInset' | 'customButtonsOnHover');
+		titleBarStyle?: ('default' | 'hidden' | 'hiddenInset' | 'customButtonsOnHover');
 		/**
-		 * Shows the title in the tile bar in full screen mode on macOS for all
+		 * Shows the title in the title bar in full screen mode on macOS for all
 		 * titleBarStyle options. Default is false.
 		 */
 		fullscreenWindowTitle?: boolean;
@@ -6196,7 +6798,11 @@ declare namespace Electron {
 		/**
 		 * Verification result from chromium.
 		 */
-		error: string;
+		verificationResult: string;
+		/**
+		 * Error code.
+		 */
+		errorCode: number;
 	}
 
 	interface ClearStorageDataOptions {
@@ -6206,7 +6812,7 @@ declare namespace Electron {
 		origin?: string;
 		/**
 		 * The types of storages to clear, can contain: appcache, cookies, filesystem,
-		 * indexdb, localstorage, shadercache, websql, serviceworkers
+		 * indexdb, localstorage, shadercache, websql, serviceworkers.
 		 */
 		storages?: string[];
 		/**
@@ -6253,11 +6859,11 @@ declare namespace Electron {
 
 	interface ContextMenuParams {
 		/**
-		 * x coordinate
+		 * x coordinate.
 		 */
 		x: number;
 		/**
-		 * y coordinate
+		 * y coordinate.
 		 */
 		y: number;
 		/**
@@ -6317,8 +6923,8 @@ declare namespace Electron {
 		 */
 		inputFieldType: string;
 		/**
-		 * Input source that invoked the context menu. Can be none, mouse, keyboard, touch,
-		 * touchMenu.
+		 * Input source that invoked the context menu. Can be none, mouse, keyboard, touch
+		 * or touchMenu.
 		 */
 		menuSourceType: ('none' | 'mouse' | 'keyboard' | 'touch' | 'touchMenu');
 		/**
@@ -6355,9 +6961,10 @@ declare namespace Electron {
 		 * properties are sent correctly. Nested objects are not supported and the property
 		 * names and values must be less than 64 characters long.
 		 */
-		extra?: any;
+		extra?: Extra;
 		/**
-		 * Only used when the crash reporter is used in a forked process (macOS only).
+		 * Directory to store the crashreports temporarily (only used when the crash
+		 * reporter is started via process.crashReporter.start).
 		 */
 		crashesDirectory?: string;
 	}
@@ -6502,9 +7109,12 @@ declare namespace Electron {
 	}
 
 	interface DisplayBalloonOptions {
+		/**
+		 * -
+		 */
 		icon?: NativeImage | string;
-		title?: string;
-		content?: string;
+		title: string;
+		content: string;
 	}
 
 	interface Dock {
@@ -6569,6 +7179,18 @@ declare namespace Electron {
 	interface Extensions {
 	}
 
+	interface FeedURLOptions {
+		url: string;
+		/**
+		 * HTTP request headers.
+		 */
+		headers?: Headers;
+		/**
+		 * Either json or default, see the README for more information.
+		 */
+		serverType?: string;
+	}
+
 	interface FileIconOptions {
 		size: ('small' | 'normal' | 'large');
 	}
@@ -6584,7 +7206,7 @@ declare namespace Electron {
 		 */
 		name?: string;
 		/**
-		 * Retrieves cookies whose domains match or are subdomains of domains
+		 * Retrieves cookies whose domains match or are subdomains of domains.
 		 */
 		domain?: string;
 		/**
@@ -6644,6 +7266,18 @@ declare namespace Electron {
 		name: string;
 	}
 
+	interface Headers {
+	}
+
+	interface IgnoreMouseEventsOptions {
+		/**
+		 * If true, forwards mouse move messages to Chromium, enabling mouse related events
+		 * such as mouseleave. Only used when ignore is true. If ignore is false,
+		 * forwarding is always disabled regardless of this value.
+		 */
+		forward?: boolean;
+	}
+
 	interface ImportCertificateOptions {
 		/**
 		 * Path for the pkcs12 file.
@@ -6657,35 +7291,35 @@ declare namespace Electron {
 
 	interface Input {
 		/**
-		 * Either keyUp or keyDown
+		 * Either keyUp or keyDown.
 		 */
 		type: string;
 		/**
-		 * Equivalent to
+		 * Equivalent to .
 		 */
 		key: string;
 		/**
-		 * Equivalent to
+		 * Equivalent to .
 		 */
 		code: string;
 		/**
-		 * Equivalent to
+		 * Equivalent to .
 		 */
 		isAutoRepeat: boolean;
 		/**
-		 * Equivalent to
+		 * Equivalent to .
 		 */
 		shift: boolean;
 		/**
-		 * Equivalent to
+		 * Equivalent to .
 		 */
 		control: boolean;
 		/**
-		 * Equivalent to
+		 * Equivalent to .
 		 */
 		alt: boolean;
 		/**
-		 * Equivalent to
+		 * Equivalent to .
 		 */
 		meta: boolean;
 	}
@@ -6711,6 +7345,14 @@ declare namespace Electron {
 		uploadData: UploadData[];
 	}
 
+	interface InterceptStreamProtocolRequest {
+		url: string;
+		headers: Headers;
+		referrer: string;
+		method: string;
+		uploadData: UploadData[];
+	}
+
 	interface InterceptStringProtocolRequest {
 		url: string;
 		referrer: string;
@@ -6767,6 +7409,9 @@ declare namespace Electron {
 		 * Extra headers separated by "\n"
 		 */
 		extraHeaders?: string;
+		/**
+		 * -
+		 */
 		postData?: UploadRawData[] | UploadFile[] | UploadFileSystem[] | UploadBlob[];
 		/**
 		 * Base url (with trailing path separator) for files to be loaded by the data url.
@@ -6783,25 +7428,25 @@ declare namespace Electron {
 		 */
 		openAtLogin: boolean;
 		/**
-		 * true if the app is set to open as hidden at login. This setting is only
-		 * supported on macOS.
+		 * true if the app is set to open as hidden at login. This setting is not available
+		 * on .
 		 */
 		openAsHidden: boolean;
 		/**
-		 * true if the app was opened at login automatically. This setting is only
-		 * supported on macOS.
+		 * true if the app was opened at login automatically. This setting is not available
+		 * on .
 		 */
 		wasOpenedAtLogin: boolean;
 		/**
 		 * true if the app was opened as a hidden login item. This indicates that the app
-		 * should not open any windows at startup. This setting is only supported on macOS.
+		 * should not open any windows at startup. This setting is not available on .
 		 */
 		wasOpenedAsHidden: boolean;
 		/**
 		 * true if the app was opened as a login item that should restore the state from
 		 * the previous session. This indicates that the app should restore the windows
-		 * that were open the last time the app was closed. This setting is only supported
-		 * on macOS.
+		 * that were open the last time the app was closed. This setting is not available
+		 * on .
 		 */
 		restoreState: boolean;
 	}
@@ -6827,7 +7472,7 @@ declare namespace Electron {
 		 * Define the action of the menu item, when specified the click property will be
 		 * ignored. See .
 		 */
-		role?: MenuItemRole;
+		role?: string;
 		/**
 		 * Can be normal, separator, submenu, checkbox or radio.
 		 */
@@ -6850,7 +7495,7 @@ declare namespace Electron {
 		checked?: boolean;
 		/**
 		 * Should be specified for submenu type menu items. If submenu is specified, the
-		 * type: 'submenu' can be omitted. If the value is not a Menu then it will be
+		 * type: 'submenu' can be omitted. If the value is not a then it will be
 		 * automatically converted to one using Menu.buildFromTemplate.
 		 */
 		submenu?: MenuItemConstructorOptions[] | Menu;
@@ -6940,7 +7585,7 @@ declare namespace Electron {
 		 */
 		disposition: ('default' | 'foreground-tab' | 'background-tab' | 'new-window' | 'save-to-disk' | 'other');
 		/**
-		 * The options which should be used for creating the new `BrowserWindow`.
+		 * The options which should be used for creating the new .
 		 */
 		options: Options;
 	}
@@ -6948,7 +7593,7 @@ declare namespace Electron {
 	interface NotificationConstructorOptions {
 		/**
 		 * A title for the notification, which will be shown at the top of the notification
-		 * window when it is shown
+		 * window when it is shown.
 		 */
 		title: string;
 		/**
@@ -6957,17 +7602,17 @@ declare namespace Electron {
 		subtitle?: string;
 		/**
 		 * The body text of the notification, which will be displayed below the title or
-		 * subtitle
+		 * subtitle.
 		 */
 		body: string;
 		/**
-		 * Whether or not to emit an OS notification noise when showing the notification
+		 * Whether or not to emit an OS notification noise when showing the notification.
 		 */
 		silent?: boolean;
 		/**
-		 * An icon to use in the notification
+		 * An icon to use in the notification.
 		 */
-		icon?: NativeImage;
+		icon?: string | NativeImage;
 		/**
 		 * Whether or not to add an inline reply option to the notification.
 		 */
@@ -6982,15 +7627,21 @@ declare namespace Electron {
 		sound?: string;
 		/**
 		 * Actions to add to the notification. Please read the available actions and
-		 * limitations in the NotificationAction documentation
+		 * limitations in the NotificationAction documentation.
 		 */
 		actions?: NotificationAction[];
+		/**
+		 * A custom title for the close button of an alert. An empty string will cause the
+		 * default localized text to be used.
+		 */
+		closeButtonText?: string;
 	}
 
 	interface OnBeforeRedirectDetails {
-		id: string;
+		id: number;
 		url: string;
 		method: string;
+		webContentsId?: number;
 		resourceType: string;
 		timestamp: number;
 		redirectURL: string;
@@ -7015,6 +7666,7 @@ declare namespace Electron {
 		id: number;
 		url: string;
 		method: string;
+		webContentsId?: number;
 		resourceType: string;
 		timestamp: number;
 		uploadData: UploadData[];
@@ -7040,6 +7692,7 @@ declare namespace Electron {
 		id: number;
 		url: string;
 		method: string;
+		webContentsId?: number;
 		resourceType: string;
 		timestamp: number;
 		responseHeaders: ResponseHeaders;
@@ -7060,6 +7713,7 @@ declare namespace Electron {
 		id: number;
 		url: string;
 		method: string;
+		webContentsId?: number;
 		resourceType: string;
 		timestamp: number;
 		fromCache: boolean;
@@ -7089,6 +7743,7 @@ declare namespace Electron {
 		id: number;
 		url: string;
 		method: string;
+		webContentsId?: number;
 		resourceType: string;
 		timestamp: number;
 		responseHeaders: ResponseHeaders;
@@ -7112,6 +7767,7 @@ declare namespace Electron {
 		id: number;
 		url: string;
 		method: string;
+		webContentsId?: number;
 		resourceType: string;
 		timestamp: number;
 		requestHeaders: RequestHeaders;
@@ -7152,6 +7808,10 @@ declare namespace Electron {
 		 * Message to display above input boxes.
 		 */
 		message?: string;
+		/**
+		 * Create when packaged for the Mac App Store.
+		 */
+		securityScopedBookmarks?: boolean;
 	}
 
 	interface OpenExternalOptions {
@@ -7175,50 +7835,56 @@ declare namespace Electron {
 
 	interface Parameters {
 		/**
-		 * Specify the screen type to emulate (default: desktop)
+		 * Specify the screen type to emulate (default: desktop):
 		 */
 		screenPosition: ('desktop' | 'mobile');
 		/**
-		 * Set the emulated screen size (screenPosition == mobile)
+		 * Set the emulated screen size (screenPosition == mobile).
 		 */
 		screenSize: Size;
 		/**
 		 * Position the view on the screen (screenPosition == mobile) (default: {x: 0, y:
-		 * 0})
+		 * 0}).
 		 */
 		viewPosition: Point;
 		/**
 		 * Set the device scale factor (if zero defaults to original device scale factor)
-		 * (default: 0)
+		 * (default: 0).
 		 */
 		deviceScaleFactor: number;
 		/**
 		 * Set the emulated view size (empty means no override)
 		 */
 		viewSize: Size;
-		/**
-		 * Whether emulated view should be scaled down if necessary to fit into available
-		 * space (default: false)
-		 */
-		fitToView: boolean;
-		/**
-		 * Offset of the emulated view inside available space (not in fit to view mode)
-		 * (default: {x: 0, y: 0})
-		 */
-		offset: Point;
 		/**
 		 * Scale of emulated view inside available space (not in fit to view mode)
-		 * (default: 1)
+		 * (default: 1).
 		 */
 		scale: number;
 	}
 
+	interface Payment {
+		productIdentifier: string;
+		quantity: number;
+	}
+
+	interface PermissionRequestHandlerDetails {
+		/**
+		 * The url of the openExternal request.
+		 */
+		externalURL: string;
+	}
+
 	interface PluginCrashedEvent extends Event {
 		name: string;
 		version: string;
 	}
 
 	interface PopupOptions {
+		/**
+		 * Default is the focused window.
+		 */
+		window?: BrowserWindow;
 		/**
 		 * Default is the current mouse cursor position. Must be declared if y is declared.
 		 */
@@ -7227,16 +7893,15 @@ declare namespace Electron {
 		 * Default is the current mouse cursor position. Must be declared if x is declared.
 		 */
 		y?: number;
-		/**
-		 * Set to true to have this method return immediately called, false to return after
-		 * the menu has been selected or closed. Defaults to false.
-		 */
-		async?: boolean;
 		/**
 		 * The index of the menu item to be positioned under the mouse cursor at the
 		 * specified coordinates. Default is -1.
 		 */
 		positioningItem?: number;
+		/**
+		 * Called when menu is closed.
+		 */
+		callback?: () => void;
 	}
 
 	interface PrintOptions {
@@ -7295,7 +7960,7 @@ declare namespace Electron {
 		privateBytes: number;
 		/**
 		 * The amount of memory shared between processes, typically memory consumed by the
-		 * Electron code itself
+		 * Electron code itself.
 		 */
 		sharedBytes: number;
 	}
@@ -7309,7 +7974,7 @@ declare namespace Electron {
 
 	interface Provider {
 		/**
-		 * Returns Boolean
+		 * Returns Boolean.
 		 */
 		spellCheck: (text: string) => void;
 	}
@@ -7354,6 +8019,14 @@ declare namespace Electron {
 		secure?: boolean;
 	}
 
+	interface RegisterStreamProtocolRequest {
+		url: string;
+		headers: Headers;
+		referrer: string;
+		method: string;
+		uploadData: UploadData[];
+	}
+
 	interface RegisterStringProtocolRequest {
 		url: string;
 		referrer: string;
@@ -7401,7 +8074,7 @@ declare namespace Electron {
 		 */
 		width?: number;
 		/**
-		 * Defaults to the image's height
+		 * Defaults to the image's height.
 		 */
 		height?: number;
 		/**
@@ -7472,6 +8145,11 @@ declare namespace Electron {
 		 * Show the tags input box, defaults to true.
 		 */
 		showsTagField?: boolean;
+		/**
+		 * Create a when packaged for the Mac App Store. If this option is enabled and the
+		 * file doesn't already exist a blank file will be created at the chosen path.
+		 */
+		securityScopedBookmarks?: boolean;
 	}
 
 	interface Settings {
@@ -7484,7 +8162,7 @@ declare namespace Electron {
 		 * true to open the app as hidden. Defaults to false. The user can edit this
 		 * setting from the System Preferences so
 		 * app.getLoginItemStatus().wasOpenedAsHidden should be checked when the app is
-		 * opened to know the current value. This setting is only supported on macOS.
+		 * opened to know the current value. This setting is not available on .
 		 */
 		openAsHidden?: boolean;
 		/**
@@ -7585,7 +8263,7 @@ declare namespace Electron {
 		/**
 		 * Can be left, right or overlay.
 		 */
-		iconPosition: ('left' | 'right' | 'overlay');
+		iconPosition?: ('left' | 'right' | 'overlay');
 		/**
 		 * Function to call when the button is clicked.
 		 */
@@ -7608,8 +8286,8 @@ declare namespace Electron {
 	}
 
 	interface TouchBarConstructorOptions {
-		items: (TouchBarButton | TouchBarColorPicker | TouchBarGroup | TouchBarLabel | TouchBarPopover | TouchBarScrubber | TouchBarSegmentedControl | TouchBarSlider | TouchBarSpacer)[];
-		escapeItem?: TouchBarButton | TouchBarColorPicker | TouchBarGroup | TouchBarLabel | TouchBarPopover | TouchBarScrubber | TouchBarSegmentedControl | TouchBarSlider | TouchBarSpacer;
+		items: Array<TouchBarButton | TouchBarColorPicker | TouchBarGroup | TouchBarLabel | TouchBarPopover | TouchBarScrubber | TouchBarSegmentedControl | TouchBarSlider | TouchBarSpacer>;
+		escapeItem?: TouchBarButton | TouchBarColorPicker | TouchBarGroup | TouchBarLabel | TouchBarPopover | TouchBarScrubber | TouchBarSegmentedControl | TouchBarSlider | TouchBarSpacer | null;
 	}
 
 	interface TouchBarGroupConstructorOptions {
@@ -7652,15 +8330,15 @@ declare namespace Electron {
 
 	interface TouchBarScrubberConstructorOptions {
 		/**
-		 * An array of items to place in this scrubber
+		 * An array of items to place in this scrubber.
 		 */
 		items: ScrubberItem[];
 		/**
-		 * Called when the user taps an item that was not the last tapped item
+		 * Called when the user taps an item that was not the last tapped item.
 		 */
 		select: (selectedIndex: number) => void;
 		/**
-		 * Called when the user taps any item
+		 * Called when the user taps any item.
 		 */
 		highlight: (highlightedIndex: number) => void;
 		/**
@@ -7704,7 +8382,7 @@ declare namespace Electron {
 		 */
 		selectedIndex?: number;
 		/**
-		 * Called when the user selects a new segment
+		 * Called when the user selects a new segment.
 		 */
 		change: (selectedIndex: number, isSelected: boolean) => void;
 	}
@@ -7809,9 +8487,6 @@ declare namespace Electron {
 		finalUpdate: boolean;
 	}
 
-	interface Headers {
-	}
-
 	interface MediaFlags {
 		/**
 		 * Whether the media element has crashed.
@@ -7911,6 +8586,15 @@ declare namespace Electron {
 		 * session.
 		 */
 		partition?: string;
+		/**
+		 * When specified, web pages with the same affinity will run in the same renderer
+		 * process. Note that due to reusing the renderer process, certain webPreferences
+		 * options will also be shared between the web pages even when you specified
+		 * different values for them, including but not limited to preload, sandbox and
+		 * nodeIntegration. So it is suggested to use exact same webPreferences for web
+		 * pages with the same affinity.
+		 */
+		affinity?: string;
 		/**
 		 * The default zoom factor of the page, 3.0 represents 300%. Default is 1.0.
 		 */
@@ -7994,7 +8678,7 @@ declare namespace Electron {
 		defaultEncoding?: string;
 		/**
 		 * Whether to throttle animations and timers when the page becomes background. This
-		 * also affects the [Page Visibility API][#page-visibility]. Defaults to true.
+		 * also affects the . Defaults to true.
 		 */
 		backgroundThrottling?: boolean;
 		/**
@@ -8031,6 +8715,12 @@ declare namespace Electron {
 		 * alter the <webview>'s initial settings.
 		 */
 		webviewTag?: boolean;
+		/**
+		 * A list of strings that will be appended to process.argv in the renderer process
+		 * of this app. Useful for passing small bits of data down to renderer process
+		 * preload scripts.
+		 */
+		additionArguments?: string[];
 	}
 
 	interface DefaultFontFamily {
@@ -8108,6 +8798,7 @@ declare namespace NodeJS {
 
 		// Docs: http://electron.atom.io/docs/api/process
 
+		// ### BEGIN VSCODE MODIFICATION ###
 		// /**
 		//  * Emitted when Electron has loaded its internal initialization script and is
 		//  * beginning to load the web page or the main script. It can be used by the preload
@@ -8118,6 +8809,8 @@ declare namespace NodeJS {
 		// once(event: 'loaded', listener: Function): this;
 		// addListener(event: 'loaded', listener: Function): this;
 		// removeListener(event: 'loaded', listener: Function): this;
+		// ### END VSCODE MODIFICATION ###
+
 		/**
 		 * Causes the main thread of the current process crash.
 		 */
@@ -8160,8 +8853,8 @@ declare namespace NodeJS {
 		noAsar?: boolean;
 		/**
 		 * A Boolean that controls whether or not deprecation warnings are printed to
-		 * stderr. Setting this to true will silence deprecation warnings.  This property
-		 * is used instead of the --no-deprecation command line flag.
+		 * stderr. Setting this to true will silence deprecation warnings. This property is
+		 * used instead of the --no-deprecation command line flag.
 		 */
 		noDeprecation?: boolean;
 		/**
@@ -8170,21 +8863,21 @@ declare namespace NodeJS {
 		resourcesPath?: string;
 		/**
 		 * A Boolean that controls whether or not deprecation warnings will be thrown as
-		 * exceptions.  Setting this to true will throw errors for deprecations.  This
+		 * exceptions. Setting this to true will throw errors for deprecations. This
 		 * property is used instead of the --throw-deprecation command line flag.
 		 */
 		throwDeprecation?: boolean;
 		/**
 		 * A Boolean that controls whether or not deprecations printed to stderr include
-		 * their stack trace.  Setting this to true will print  stack traces for
+		 * their stack trace. Setting this to true will print stack traces for
 		 * deprecations. This property is instead of the --trace-deprecation command line
 		 * flag.
 		 */
 		traceDeprecation?: boolean;
 		/**
 		 * A Boolean that controls whether or not process warnings printed to stderr
-		 * include their stack trace.  Setting this to true will print stack traces for
-		 * process warnings (including deprecations).  This property is instead of the
+		 * include their stack trace. Setting this to true will print stack traces for
+		 * process warnings (including deprecations). This property is instead of the
 		 * --trace-warnings command line flag.
 		 */
 		traceProcessWarnings?: boolean;
diff --git a/src/typings/node.d.ts b/src/typings/node.d.ts
index 1b6661edd71ca..a1c8edf9d4871 100644
--- a/src/typings/node.d.ts
+++ b/src/typings/node.d.ts
@@ -1,41 +1,62 @@
-// Type definitions for Node.js v7.x
+// Type definitions for Node.js 8.9.x
 // Project: http://nodejs.org/
 // Definitions by: Microsoft TypeScript <http://typescriptlang.org>
 //                 DefinitelyTyped <https://github.com/DefinitelyTyped/DefinitelyTyped>
 //                 Parambir Singh <https://github.com/parambirs>
-//                 Roberto Desideri <https://github.com/RobDesideri>
 //                 Christian Vaagland Tellnes <https://github.com/tellnes>
 //                 Wilco Bakker <https://github.com/WilcoBakker>
-//                 Daniel Imms <https://github.com/Tyriar>
+//                 Nicolas Voigt <https://github.com/octo-sniffle>
+//                 Chigozirim C. <https://github.com/smac89>
+//                 Flarna <https://github.com/Flarna>
+//                 Mariusz Wiktorczyk <https://github.com/mwiktorczyk>
+//                 wwwy3y3 <https://github.com/wwwy3y3>
+//                 Deividas Bakanas <https://github.com/DeividasBakanas>
+//                 Kelvin Jin <https://github.com/kjin>
+//                 Alvis HT Tang <https://github.com/alvis>
+//                 Oliver Joseph Ash <https://github.com/OliverJAsh>
+//                 Sebastian Silbermann <https://github.com/eps1lon>
+//                 Hannes Magnusson <https://github.com/Hannes-Magnusson-CK>
+//                 Alberto Schiabel <https://github.com/jkomyno>
+//                 Huw <https://github.com/hoo29>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.1
 
-/************************************************
-*                                               *
-*               Node.js v7.x API                *
-*                                               *
-************************************************/
+// ### BEGIN VSCODE MODIFICATION ###
+// /** inspector module types */
+// /// <reference path="./inspector.d.ts" />
+// ### BEGIN VSCODE MODIFICATION ###
 
 // This needs to be global to avoid TS2403 in case lib.dom.d.ts is present in the same build
 interface Console {
-	Console: NodeJS.ConsoleConstructor;
-	assert(value: any, message?: string, ...optionalParams: any[]): void;
-	dir(obj: any, options?: NodeJS.InspectOptions): void;
-	error(message?: any, ...optionalParams: any[]): void;
-	info(message?: any, ...optionalParams: any[]): void;
-	log(message?: any, ...optionalParams: any[]): void;
-	time(label: string): void;
-	timeEnd(label: string): void;
-	trace(message?: any, ...optionalParams: any[]): void;
-	warn(message?: any, ...optionalParams: any[]): void;
+    Console: NodeJS.ConsoleConstructor;
+    assert(value: any, message?: string, ...optionalParams: any[]): void;
+    dir(obj: any, options?: NodeJS.InspectOptions): void;
+    error(message?: any, ...optionalParams: any[]): void;
+    info(message?: any, ...optionalParams: any[]): void;
+    log(message?: any, ...optionalParams: any[]): void;
+    time(label: string): void;
+    timeEnd(label: string): void;
+    trace(message?: any, ...optionalParams: any[]): void;
+    warn(message?: any, ...optionalParams: any[]): void;
 }
 
 interface Error {
-	stack?: string;
+    stack?: string;
 }
 
+// Declare "static" methods in Error
 interface ErrorConstructor {
-	captureStackTrace(targetObject: Object, constructorOpt?: Function): void;
-	stackTraceLimit: number;
+    /** Create .stack property on a target object */
+    captureStackTrace(targetObject: Object, constructorOpt?: Function): void;
+
+    /**
+     * Optional override for formatting stack traces
+     *
+     * @see https://github.com/v8/v8/wiki/Stack%20Trace%20API#customizing-stack-traces
+     */
+    prepareStackTrace?: (err: Error, stackTraces: NodeJS.CallSite[]) => any;
+
+    stackTraceLimit: number;
 }
 
 // compat for TypeScript 1.8
@@ -49,55 +70,85 @@ interface WeakSetConstructor { }
 // Forward-declare needed types from lib.es2015.d.ts (in case users are using `--lib es5`)
 interface Iterable<T> { }
 interface Iterator<T> {
-	next(value?: any): IteratorResult<T>;
+    next(value?: any): IteratorResult<T>;
 }
 interface IteratorResult<T> { }
 interface SymbolConstructor {
-	readonly iterator: symbol;
+    readonly iterator: symbol;
 }
 declare var Symbol: SymbolConstructor;
 
+// Node.js ESNEXT support
+interface String {
+    /** Removes whitespace from the left end of a string. */
+    trimLeft(): string;
+    /** Removes whitespace from the right end of a string. */
+    trimRight(): string;
+}
+
 /************************************************
 *                                               *
 *                   GLOBAL                      *
 *                                               *
 ************************************************/
 declare var process: NodeJS.Process;
-declare var global: any;
+declare var global: NodeJS.Global;
 declare var console: Console;
 
-// Don't use these!! :)
+// ### BEGIN VSCODE MODIFICATION ###
 // declare var __filename: string;
 // declare var __dirname: string;
 
 // declare function setTimeout(callback: (...args: any[]) => void, ms: number, ...args: any[]): NodeJS.Timer;
+// declare namespace setTimeout {
+//     export function __promisify__(ms: number): Promise<void>;
+//     export function __promisify__<T>(ms: number, value: T): Promise<T>;
+// }
 // declare function clearTimeout(timeoutId: NodeJS.Timer): void;
 // declare function setInterval(callback: (...args: any[]) => void, ms: number, ...args: any[]): NodeJS.Timer;
 // declare function clearInterval(intervalId: NodeJS.Timer): void;
+// ### END VSCODE MODIFICATION ###
+
 declare function setImmediate(callback: (...args: any[]) => void, ...args: any[]): any;
+declare namespace setImmediate {
+    export function __promisify__(): Promise<void>;
+    export function __promisify__<T>(value: T): Promise<T>;
+}
 declare function clearImmediate(immediateId: any): void;
 
+// TODO: change to `type NodeRequireFunction = (id: string) => any;` in next mayor version.
 interface NodeRequireFunction {
-	(id: string): any;
+    /* tslint:disable-next-line:callable-types */
+    (id: string): any;
 }
 
+// ### BEGIN VSCODE MODIFICATION ###
 // interface NodeRequire extends NodeRequireFunction {
 //     resolve(id: string): string;
 //     cache: any;
-//     extensions: any;
+//     extensions: NodeExtensions;
 //     main: NodeModule | undefined;
 // }
 
+// interface NodeExtensions {
+//     '.js': (m: NodeModule, filename: string) => any;
+//     '.json': (m: NodeModule, filename: string) => any;
+//     '.node': (m: NodeModule, filename: string) => any;
+//     [ext: string]: (m: NodeModule, filename: string) => any;
+// }
+
 // declare var require: NodeRequire;
+// ### END VSCODE MODIFICATION ###
 
 interface NodeModule {
-	exports: any;
-	require: NodeRequireFunction;
-	id: string;
-	filename: string;
-	loaded: boolean;
-	parent: NodeModule | null;
-	children: NodeModule[];
+    exports: any;
+    require: NodeRequireFunction;
+    id: string;
+    filename: string;
+    loaded: boolean;
+    parent: NodeModule | null;
+    children: NodeModule[];
+    paths: string[];
 }
 
 declare var module: NodeModule;
@@ -105,17 +156,16 @@ declare var module: NodeModule;
 // Same as module.exports
 declare var exports: any;
 declare var SlowBuffer: {
-	new(str: string, encoding?: string): Buffer;
-	new(size: number): Buffer;
-	new(size: Uint8Array): Buffer;
-	new(array: any[]): Buffer;
-	prototype: Buffer;
-	isBuffer(obj: any): boolean;
-	byteLength(string: string, encoding?: string): number;
-	concat(list: Buffer[], totalLength?: number): Buffer;
+    new(str: string, encoding?: string): Buffer;
+    new(size: number): Buffer;
+    new(size: Uint8Array): Buffer;
+    new(array: any[]): Buffer;
+    prototype: Buffer;
+    isBuffer(obj: any): boolean;
+    byteLength(string: string, encoding?: string): number;
+    concat(list: Buffer[], totalLength?: number): Buffer;
 };
 
-
 // Buffer class
 type BufferEncoding = "ascii" | "utf8" | "utf16le" | "ucs2" | "base64" | "latin1" | "binary" | "hex";
 interface Buffer extends NodeBuffer { }
@@ -132,19 +182,19 @@ declare var Buffer: {
      * @param str String to store in buffer.
      * @param encoding encoding to use, optional.  Default is 'utf8'
      */
-	new(str: string, encoding?: string): Buffer;
+    new(str: string, encoding?: string): Buffer;
     /**
      * Allocates a new buffer of {size} octets.
      *
      * @param size count of octets to allocate.
      */
-	new(size: number): Buffer;
+    new(size: number): Buffer;
     /**
      * Allocates a new buffer containing the given {array} of octets.
      *
      * @param array The octets to store.
      */
-	new(array: Uint8Array): Buffer;
+    new(array: Uint8Array): Buffer;
     /**
      * Produces a Buffer backed by the same allocated memory as
      * the given {ArrayBuffer}.
@@ -152,26 +202,24 @@ declare var Buffer: {
      *
      * @param arrayBuffer The ArrayBuffer with which to share memory.
      */
-	new(arrayBuffer: ArrayBuffer): Buffer;
+    new(arrayBuffer: ArrayBuffer): Buffer;
     /**
      * Allocates a new buffer containing the given {array} of octets.
      *
      * @param array The octets to store.
      */
-	new(array: any[]): Buffer;
+    new(array: any[]): Buffer;
     /**
      * Copies the passed {buffer} data onto a new {Buffer} instance.
      *
      * @param buffer The buffer to copy.
      */
-	new(buffer: Buffer): Buffer;
-	prototype: Buffer;
+    new(buffer: Buffer): Buffer;
+    prototype: Buffer;
     /**
      * Allocates a new Buffer using an {array} of octets.
-     *
-     * @param array
      */
-	from(array: any[]): Buffer;
+    from(array: any[]): Buffer;
     /**
      * When passed a reference to the .buffer property of a TypedArray instance,
      * the newly created Buffer will share the same allocated memory as the TypedArray.
@@ -179,45 +227,39 @@ declare var Buffer: {
      * within the {arrayBuffer} that will be shared by the Buffer.
      *
      * @param arrayBuffer The .buffer property of a TypedArray or a new ArrayBuffer()
-     * @param byteOffset
-     * @param length
      */
-	from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer;
+    from(arrayBuffer: ArrayBuffer, byteOffset?: number, length?: number): Buffer;
     /**
      * Copies the passed {buffer} data onto a new Buffer instance.
-     *
-     * @param buffer
      */
-	from(buffer: Buffer): Buffer;
+    from(buffer: Buffer): Buffer;
     /**
      * Creates a new Buffer containing the given JavaScript string {str}.
      * If provided, the {encoding} parameter identifies the character encoding.
      * If not provided, {encoding} defaults to 'utf8'.
-     *
-     * @param str
      */
-	from(str: string, encoding?: string): Buffer;
+    from(str: string, encoding?: string): Buffer;
     /**
      * Returns true if {obj} is a Buffer
      *
      * @param obj object to test.
      */
-	isBuffer(obj: any): obj is Buffer;
+    isBuffer(obj: any): obj is Buffer;
     /**
      * Returns true if {encoding} is a valid encoding argument.
      * Valid string encodings in Node 0.12: 'ascii'|'utf8'|'utf16le'|'ucs2'(alias of 'utf16le')|'base64'|'binary'(deprecated)|'hex'
      *
      * @param encoding string to test.
      */
-	isEncoding(encoding: string): boolean;
+    isEncoding(encoding: string): boolean;
     /**
      * Gives the actual byte length of a string. encoding defaults to 'utf8'.
      * This is not the same as String.prototype.length since that returns the number of characters in a string.
      *
-     * @param string string to test.
+     * @param string string to test. (TypedArray is also allowed, but it is only available starting ES2017)
      * @param encoding encoding used to evaluate (defaults to 'utf8')
      */
-	byteLength(string: string, encoding?: string): number;
+    byteLength(string: string | Buffer | DataView | ArrayBuffer, encoding?: string): number;
     /**
      * Returns a buffer which is the result of concatenating all the buffers in the list together.
      *
@@ -229,11 +271,11 @@ declare var Buffer: {
      * @param totalLength Total length of the buffers when concatenated.
      *   If totalLength is not provided, it is read from the buffers in the list. However, this adds an additional loop to the function, so it is faster to provide the length explicitly.
      */
-	concat(list: Buffer[], totalLength?: number): Buffer;
+    concat(list: Buffer[], totalLength?: number): Buffer;
     /**
      * The same as buf1.compare(buf2).
      */
-	compare(buf1: Buffer, buf2: Buffer): number;
+    compare(buf1: Buffer, buf2: Buffer): number;
     /**
      * Allocates a new buffer of {size} octets.
      *
@@ -242,21 +284,25 @@ declare var Buffer: {
      *    If parameter is omitted, buffer will be filled with zeros.
      * @param encoding encoding used for call to buf.fill while initalizing
      */
-	alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer;
+    alloc(size: number, fill?: string | Buffer | number, encoding?: string): Buffer;
     /**
      * Allocates a new buffer of {size} octets, leaving memory not initialized, so the contents
      * of the newly created Buffer are unknown and may contain sensitive data.
      *
      * @param size count of octets to allocate
      */
-	allocUnsafe(size: number): Buffer;
+    allocUnsafe(size: number): Buffer;
     /**
      * Allocates a new non-pooled buffer of {size} octets, leaving memory not initialized, so the contents
      * of the newly created Buffer are unknown and may contain sensitive data.
      *
      * @param size count of octets to allocate
      */
-	allocUnsafeSlow(size: number): Buffer;
+    allocUnsafeSlow(size: number): Buffer;
+    /**
+     * This is the number of bytes used to determine the size of pre-allocated, internal Buffer instances used for pooling. This value may be modified.
+     */
+    poolSize: number;
 };
 
 /************************************************
@@ -265,273 +311,501 @@ declare var Buffer: {
 *                                               *
 ************************************************/
 declare namespace NodeJS {
-	export interface InspectOptions {
-		showHidden?: boolean;
-		depth?: number | null;
-		colors?: boolean;
-		customInspect?: boolean;
-		showProxy?: boolean;
-		maxArrayLength?: number | null;
-		breakLength?: number;
-	}
-
-	export interface ConsoleConstructor {
-		prototype: Console;
-		new(stdout: WritableStream, stderr?: WritableStream): Console;
-	}
-
-	export interface ErrnoException extends Error {
-		errno?: number;
-		code?: string;
-		path?: string;
-		syscall?: string;
-		stack?: string;
-	}
-
-	export class EventEmitter {
-		addListener(event: string | symbol, listener: Function): this;
-		on(event: string | symbol, listener: Function): this;
-		once(event: string | symbol, listener: Function): this;
-		removeListener(event: string | symbol, listener: Function): this;
-		removeAllListeners(event?: string | symbol): this;
-		setMaxListeners(n: number): this;
-		getMaxListeners(): number;
-		listeners(event: string | symbol): Function[];
-		emit(event: string | symbol, ...args: any[]): boolean;
-		listenerCount(type: string | symbol): number;
-		// Added in Node 6...
-		prependListener(event: string | symbol, listener: Function): this;
-		prependOnceListener(event: string | symbol, listener: Function): this;
-		eventNames(): (string | symbol)[];
-	}
-
-	export interface ReadableStream extends EventEmitter {
-		readable: boolean;
-		read(size?: number): string | Buffer;
-		setEncoding(encoding: string | null): this;
-		pause(): this;
-		resume(): this;
-		isPaused(): boolean;
-		pipe<T extends WritableStream>(destination: T, options?: { end?: boolean; }): T;
-		unpipe<T extends WritableStream>(destination?: T): this;
-		unshift(chunk: string): void;
-		unshift(chunk: Buffer): void;
-		wrap(oldStream: ReadableStream): ReadableStream;
-	}
-
-	export interface WritableStream extends EventEmitter {
-		writable: boolean;
-		write(buffer: Buffer | string, cb?: Function): boolean;
-		write(str: string, encoding?: string, cb?: Function): boolean;
-		end(): void;
-		end(buffer: Buffer, cb?: Function): void;
-		end(str: string, cb?: Function): void;
-		end(str: string, encoding?: string, cb?: Function): void;
-	}
-
-	export interface ReadWriteStream extends ReadableStream, WritableStream { }
-
-	export interface Events extends EventEmitter { }
-
-	export interface Domain extends Events {
-		run(fn: Function): void;
-		add(emitter: Events): void;
-		remove(emitter: Events): void;
-		bind(cb: (err: Error, data: any) => any): any;
-		intercept(cb: (data: any) => any): any;
-		dispose(): void;
-
-		addListener(event: string, listener: Function): this;
-		on(event: string, listener: Function): this;
-		once(event: string, listener: Function): this;
-		removeListener(event: string, listener: Function): this;
-		removeAllListeners(event?: string): this;
-	}
-
-	export interface MemoryUsage {
-		rss: number;
-		heapTotal: number;
-		heapUsed: number;
-	}
-
-	export interface CpuUsage {
-		user: number;
-		system: number;
-	}
-
-	export interface ProcessVersions {
-		http_parser: string;
-		node: string;
-		v8: string;
-		ares: string;
-		uv: string;
-		zlib: string;
-		modules: string;
-		openssl: string;
-	}
-
-	type Platform = 'aix'
-		| 'android'
-		| 'darwin'
-		| 'freebsd'
-		| 'linux'
-		| 'openbsd'
-		| 'sunos'
-		| 'win32';
-
-	export interface Socket extends ReadWriteStream {
-		isTTY?: true;
-	}
-
-	export interface WriteStream extends Socket {
-		columns?: number;
-		rows?: number;
-	}
-	export interface ReadStream extends Socket {
-		isRaw?: boolean;
-		setRawMode?(mode: boolean): void;
-	}
-
-	export interface Process extends EventEmitter {
-		stdout: WriteStream;
-		stderr: WriteStream;
-		stdin: ReadStream;
-		openStdin(): Socket;
-		argv: string[];
-		argv0: string;
-		execArgv: string[];
-		execPath: string;
-		abort(): void;
-		chdir(directory: string): void;
-		cwd(): string;
-		emitWarning(warning: string | Error, name?: string, ctor?: Function): void;
-		env: any;
-		exit(code?: number): void;
-		exitCode: number;
-		getgid(): number;
-		setgid(id: number): void;
-		setgid(id: string): void;
-		getuid(): number;
-		setuid(id: number): void;
-		setuid(id: string): void;
-		version: string;
-		versions: ProcessVersions;
-		config: {
-			target_defaults: {
-				cflags: any[];
-				default_configuration: string;
-				defines: string[];
-				include_dirs: string[];
-				libraries: string[];
-			};
-			variables: {
-				clang: number;
-				host_arch: string;
-				node_install_npm: boolean;
-				node_install_waf: boolean;
-				node_prefix: string;
-				node_shared_openssl: boolean;
-				node_shared_v8: boolean;
-				node_shared_zlib: boolean;
-				node_use_dtrace: boolean;
-				node_use_etw: boolean;
-				node_use_openssl: boolean;
-				target_arch: string;
-				v8_no_strict_aliasing: number;
-				v8_use_snapshot: boolean;
-				visibility: string;
-			};
-		};
-		kill(pid: number, signal?: string | number): void;
-		pid: number;
-		title: string;
-		arch: string;
-		platform: Platform;
-		mainModule?: NodeModule;
-		memoryUsage(): MemoryUsage;
-		cpuUsage(previousValue?: CpuUsage): CpuUsage;
-		nextTick(callback: Function, ...args: any[]): void;
-		umask(mask?: number): number;
-		uptime(): number;
-		hrtime(time?: [number, number]): [number, number];
-		domain: Domain;
-
-		// Worker
-		send?(message: any, sendHandle?: any): void;
-		disconnect(): void;
-		connected: boolean;
-	}
-
-	export interface Global {
-		Array: typeof Array;
-		ArrayBuffer: typeof ArrayBuffer;
-		Boolean: typeof Boolean;
-		Buffer: typeof Buffer;
-		DataView: typeof DataView;
-		Date: typeof Date;
-		Error: typeof Error;
-		EvalError: typeof EvalError;
-		Float32Array: typeof Float32Array;
-		Float64Array: typeof Float64Array;
-		Function: typeof Function;
-		GLOBAL: Global;
-		Infinity: typeof Infinity;
-		Int16Array: typeof Int16Array;
-		Int32Array: typeof Int32Array;
-		Int8Array: typeof Int8Array;
-		Intl: typeof Intl;
-		JSON: typeof JSON;
-		Map: MapConstructor;
-		Math: typeof Math;
-		NaN: typeof NaN;
-		Number: typeof Number;
-		Object: typeof Object;
-		Promise: Function;
-		RangeError: typeof RangeError;
-		ReferenceError: typeof ReferenceError;
-		RegExp: typeof RegExp;
-		Set: SetConstructor;
-		String: typeof String;
-		Symbol: Function;
-		SyntaxError: typeof SyntaxError;
-		TypeError: typeof TypeError;
-		URIError: typeof URIError;
-		Uint16Array: typeof Uint16Array;
-		Uint32Array: typeof Uint32Array;
-		Uint8Array: typeof Uint8Array;
-		Uint8ClampedArray: Function;
-		WeakMap: WeakMapConstructor;
-		WeakSet: WeakSetConstructor;
-		clearImmediate: (immediateId: any) => void;
-		clearInterval: (intervalId: NodeJS.Timer) => void;
-		clearTimeout: (timeoutId: NodeJS.Timer) => void;
-		console: typeof console;
-		decodeURI: typeof decodeURI;
-		decodeURIComponent: typeof decodeURIComponent;
-		encodeURI: typeof encodeURI;
-		encodeURIComponent: typeof encodeURIComponent;
-		escape: (str: string) => string;
-		eval: typeof eval;
-		global: Global;
-		isFinite: typeof isFinite;
-		isNaN: typeof isNaN;
-		parseFloat: typeof parseFloat;
-		parseInt: typeof parseInt;
-		process: Process;
-		root: Global;
-		setImmediate: (callback: (...args: any[]) => void, ...args: any[]) => any;
-		setInterval: (callback: (...args: any[]) => void, ms: number, ...args: any[]) => NodeJS.Timer;
-		setTimeout: (callback: (...args: any[]) => void, ms: number, ...args: any[]) => NodeJS.Timer;
-		undefined: typeof undefined;
-		unescape: (str: string) => string;
-		gc: () => void;
-		v8debug?: any;
-	}
-
-	export interface Timer {
-		ref(): void;
-		unref(): void;
-	}
+    export interface InspectOptions {
+        showHidden?: boolean;
+        depth?: number | null;
+        colors?: boolean;
+        customInspect?: boolean;
+        showProxy?: boolean;
+        maxArrayLength?: number | null;
+        breakLength?: number;
+    }
+
+    export interface ConsoleConstructor {
+        prototype: Console;
+        new(stdout: WritableStream, stderr?: WritableStream): Console;
+    }
+
+    export interface CallSite {
+        /**
+         * Value of "this"
+         */
+        getThis(): any;
+
+        /**
+         * Type of "this" as a string.
+         * This is the name of the function stored in the constructor field of
+         * "this", if available.  Otherwise the object's [[Class]] internal
+         * property.
+         */
+        getTypeName(): string | null;
+
+        /**
+         * Current function
+         */
+        getFunction(): Function | undefined;
+
+        /**
+         * Name of the current function, typically its name property.
+         * If a name property is not available an attempt will be made to try
+         * to infer a name from the function's context.
+         */
+        getFunctionName(): string | null;
+
+        /**
+         * Name of the property [of "this" or one of its prototypes] that holds
+         * the current function
+         */
+        getMethodName(): string | null;
+
+        /**
+         * Name of the script [if this function was defined in a script]
+         */
+        getFileName(): string | null;
+
+        /**
+         * Current line number [if this function was defined in a script]
+         */
+        getLineNumber(): number | null;
+
+        /**
+         * Current column number [if this function was defined in a script]
+         */
+        getColumnNumber(): number | null;
+
+        /**
+         * A call site object representing the location where eval was called
+         * [if this function was created using a call to eval]
+         */
+        getEvalOrigin(): string | undefined;
+
+        /**
+         * Is this a toplevel invocation, that is, is "this" the global object?
+         */
+        isToplevel(): boolean;
+
+        /**
+         * Does this call take place in code defined by a call to eval?
+         */
+        isEval(): boolean;
+
+        /**
+         * Is this call in native V8 code?
+         */
+        isNative(): boolean;
+
+        /**
+         * Is this a constructor call?
+         */
+        isConstructor(): boolean;
+    }
+
+    export interface ErrnoException extends Error {
+        errno?: number;
+        code?: string;
+        path?: string;
+        syscall?: string;
+        stack?: string;
+    }
+
+    export class EventEmitter {
+        addListener(event: string | symbol, listener: (...args: any[]) => void): this;
+        on(event: string | symbol, listener: (...args: any[]) => void): this;
+        once(event: string | symbol, listener: (...args: any[]) => void): this;
+        removeListener(event: string | symbol, listener: (...args: any[]) => void): this;
+        removeAllListeners(event?: string | symbol): this;
+        setMaxListeners(n: number): this;
+        getMaxListeners(): number;
+        listeners(event: string | symbol): Function[];
+        emit(event: string | symbol, ...args: any[]): boolean;
+        listenerCount(type: string | symbol): number;
+        // Added in Node 6...
+        prependListener(event: string | symbol, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this;
+        eventNames(): Array<string | symbol>;
+    }
+
+    export interface ReadableStream extends EventEmitter {
+        readable: boolean;
+        read(size?: number): string | Buffer;
+        setEncoding(encoding: string): this;
+        pause(): this;
+        resume(): this;
+        isPaused(): boolean;
+        pipe<T extends WritableStream>(destination: T, options?: { end?: boolean; }): T;
+        unpipe<T extends WritableStream>(destination?: T): this;
+        unshift(chunk: string): void;
+        unshift(chunk: Buffer): void;
+        wrap(oldStream: ReadableStream): this;
+    }
+
+    export interface WritableStream extends EventEmitter {
+        writable: boolean;
+        write(buffer: Buffer | string, cb?: Function): boolean;
+        write(str: string, encoding?: string, cb?: Function): boolean;
+        end(cb?: Function): void;
+        end(buffer: Buffer, cb?: Function): void;
+        end(str: string, cb?: Function): void;
+        end(str: string, encoding?: string, cb?: Function): void;
+    }
+
+    export interface ReadWriteStream extends ReadableStream, WritableStream { }
+
+    export interface Events extends EventEmitter { }
+
+    export interface Domain extends Events {
+        run(fn: Function): void;
+        add(emitter: Events): void;
+        remove(emitter: Events): void;
+        bind(cb: (err: Error, data: any) => any): any;
+        intercept(cb: (data: any) => any): any;
+        dispose(): void;
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        on(event: string, listener: (...args: any[]) => void): this;
+        once(event: string, listener: (...args: any[]) => void): this;
+        removeListener(event: string, listener: (...args: any[]) => void): this;
+        removeAllListeners(event?: string): this;
+    }
+
+    export interface MemoryUsage {
+        rss: number;
+        heapTotal: number;
+        heapUsed: number;
+    }
+
+    export interface CpuUsage {
+        user: number;
+        system: number;
+    }
+
+    export interface ProcessVersions {
+        http_parser: string;
+        node: string;
+        v8: string;
+        ares: string;
+        uv: string;
+        zlib: string;
+        modules: string;
+        openssl: string;
+    }
+
+    type Platform = 'aix'
+        | 'android'
+        | 'darwin'
+        | 'freebsd'
+        | 'linux'
+        | 'openbsd'
+        | 'sunos'
+        | 'win32'
+        | 'cygwin';
+
+    type Signals =
+        "SIGABRT" | "SIGALRM" | "SIGBUS" | "SIGCHLD" | "SIGCONT" | "SIGFPE" | "SIGHUP" | "SIGILL" | "SIGINT" | "SIGIO" |
+        "SIGIOT" | "SIGKILL" | "SIGPIPE" | "SIGPOLL" | "SIGPROF" | "SIGPWR" | "SIGQUIT" | "SIGSEGV" | "SIGSTKFLT" |
+        "SIGSTOP" | "SIGSYS" | "SIGTERM" | "SIGTRAP" | "SIGTSTP" | "SIGTTIN" | "SIGTTOU" | "SIGUNUSED" | "SIGURG" |
+        "SIGUSR1" | "SIGUSR2" | "SIGVTALRM" | "SIGWINCH" | "SIGXCPU" | "SIGXFSZ" | "SIGBREAK" | "SIGLOST" | "SIGINFO";
+
+    type BeforeExitListener = (code: number) => void;
+    type DisconnectListener = () => void;
+    type ExitListener = (code: number) => void;
+    type RejectionHandledListener = (promise: Promise<any>) => void;
+    type UncaughtExceptionListener = (error: Error) => void;
+    type UnhandledRejectionListener = (reason: any, promise: Promise<any>) => void;
+    type WarningListener = (warning: Error) => void;
+    type MessageListener = (message: any, sendHandle: any) => void;
+    type SignalsListener = () => void;
+    type NewListenerListener = (type: string | symbol, listener: (...args: any[]) => void) => void;
+    type RemoveListenerListener = (type: string | symbol, listener: (...args: any[]) => void) => void;
+
+    export interface Socket extends ReadWriteStream {
+        isTTY?: true;
+    }
+
+    export interface ProcessEnv {
+        [key: string]: string | undefined;
+    }
+
+    export interface WriteStream extends Socket {
+        columns?: number;
+        rows?: number;
+        _write(chunk: any, encoding: string, callback: Function): void;
+        _destroy(err: Error, callback: Function): void;
+        _final(callback: Function): void;
+        setDefaultEncoding(encoding: string): this;
+        cork(): void;
+        uncork(): void;
+        destroy(error?: Error): void;
+    }
+    export interface ReadStream extends Socket {
+        isRaw?: boolean;
+        setRawMode?(mode: boolean): void;
+        _read(size: number): void;
+        _destroy(err: Error, callback: Function): void;
+        push(chunk: any, encoding?: string): boolean;
+        destroy(error?: Error): void;
+    }
+
+    export interface Process extends EventEmitter {
+        stdout: WriteStream;
+        stderr: WriteStream;
+        stdin: ReadStream;
+        openStdin(): Socket;
+        argv: string[];
+        argv0: string;
+        execArgv: string[];
+        execPath: string;
+        abort(): void;
+        chdir(directory: string): void;
+        cwd(): string;
+        emitWarning(warning: string | Error, name?: string, ctor?: Function): void;
+        env: ProcessEnv;
+        exit(code?: number): never;
+        exitCode: number;
+        getgid(): number;
+        setgid(id: number | string): void;
+        getuid(): number;
+        setuid(id: number | string): void;
+        geteuid(): number;
+        seteuid(id: number | string): void;
+        getegid(): number;
+        setegid(id: number | string): void;
+        getgroups(): number[];
+        setgroups(groups: Array<string | number>): void;
+        version: string;
+        versions: ProcessVersions;
+        config: {
+            target_defaults: {
+                cflags: any[];
+                default_configuration: string;
+                defines: string[];
+                include_dirs: string[];
+                libraries: string[];
+            };
+            variables: {
+                clang: number;
+                host_arch: string;
+                node_install_npm: boolean;
+                node_install_waf: boolean;
+                node_prefix: string;
+                node_shared_openssl: boolean;
+                node_shared_v8: boolean;
+                node_shared_zlib: boolean;
+                node_use_dtrace: boolean;
+                node_use_etw: boolean;
+                node_use_openssl: boolean;
+                target_arch: string;
+                v8_no_strict_aliasing: number;
+                v8_use_snapshot: boolean;
+                visibility: string;
+            };
+        };
+        kill(pid: number, signal?: string | number): void;
+        pid: number;
+        title: string;
+        arch: string;
+        platform: Platform;
+        mainModule?: NodeModule;
+        memoryUsage(): MemoryUsage;
+        cpuUsage(previousValue?: CpuUsage): CpuUsage;
+        nextTick(callback: Function, ...args: any[]): void;
+        umask(mask?: number): number;
+        uptime(): number;
+        hrtime(time?: [number, number]): [number, number];
+        domain: Domain;
+
+        // Worker
+        send?(message: any, sendHandle?: any): void;
+        disconnect(): void;
+        connected: boolean;
+
+        /**
+         * EventEmitter
+         *   1. beforeExit
+         *   2. disconnect
+         *   3. exit
+         *   4. message
+         *   5. rejectionHandled
+         *   6. uncaughtException
+         *   7. unhandledRejection
+         *   8. warning
+         *   9. message
+         *  10. <All OS Signals>
+         *  11. newListener/removeListener inherited from EventEmitter
+         */
+        addListener(event: "beforeExit", listener: BeforeExitListener): this;
+        addListener(event: "disconnect", listener: DisconnectListener): this;
+        addListener(event: "exit", listener: ExitListener): this;
+        addListener(event: "rejectionHandled", listener: RejectionHandledListener): this;
+        addListener(event: "uncaughtException", listener: UncaughtExceptionListener): this;
+        addListener(event: "unhandledRejection", listener: UnhandledRejectionListener): this;
+        addListener(event: "warning", listener: WarningListener): this;
+        addListener(event: "message", listener: MessageListener): this;
+        addListener(event: Signals, listener: SignalsListener): this;
+        addListener(event: "newListener", listener: NewListenerListener): this;
+        addListener(event: "removeListener", listener: RemoveListenerListener): this;
+
+        emit(event: "beforeExit", code: number): boolean;
+        emit(event: "disconnect"): boolean;
+        emit(event: "exit", code: number): boolean;
+        emit(event: "rejectionHandled", promise: Promise<any>): boolean;
+        emit(event: "uncaughtException", error: Error): boolean;
+        emit(event: "unhandledRejection", reason: any, promise: Promise<any>): boolean;
+        emit(event: "warning", warning: Error): boolean;
+        emit(event: "message", message: any, sendHandle: any): this;
+        emit(event: Signals): boolean;
+        emit(event: "newListener", eventName: string | symbol, listener: (...args: any[]) => void): this;
+        emit(event: "removeListener", eventName: string, listener: (...args: any[]) => void): this;
+
+        on(event: "beforeExit", listener: BeforeExitListener): this;
+        on(event: "disconnect", listener: DisconnectListener): this;
+        on(event: "exit", listener: ExitListener): this;
+        on(event: "rejectionHandled", listener: RejectionHandledListener): this;
+        on(event: "uncaughtException", listener: UncaughtExceptionListener): this;
+        on(event: "unhandledRejection", listener: UnhandledRejectionListener): this;
+        on(event: "warning", listener: WarningListener): this;
+        on(event: "message", listener: MessageListener): this;
+        on(event: Signals, listener: SignalsListener): this;
+        on(event: "newListener", listener: NewListenerListener): this;
+        on(event: "removeListener", listener: RemoveListenerListener): this;
+
+        once(event: "beforeExit", listener: BeforeExitListener): this;
+        once(event: "disconnect", listener: DisconnectListener): this;
+        once(event: "exit", listener: ExitListener): this;
+        once(event: "rejectionHandled", listener: RejectionHandledListener): this;
+        once(event: "uncaughtException", listener: UncaughtExceptionListener): this;
+        once(event: "unhandledRejection", listener: UnhandledRejectionListener): this;
+        once(event: "warning", listener: WarningListener): this;
+        once(event: "message", listener: MessageListener): this;
+        once(event: Signals, listener: SignalsListener): this;
+        once(event: "newListener", listener: NewListenerListener): this;
+        once(event: "removeListener", listener: RemoveListenerListener): this;
+
+        prependListener(event: "beforeExit", listener: BeforeExitListener): this;
+        prependListener(event: "disconnect", listener: DisconnectListener): this;
+        prependListener(event: "exit", listener: ExitListener): this;
+        prependListener(event: "rejectionHandled", listener: RejectionHandledListener): this;
+        prependListener(event: "uncaughtException", listener: UncaughtExceptionListener): this;
+        prependListener(event: "unhandledRejection", listener: UnhandledRejectionListener): this;
+        prependListener(event: "warning", listener: WarningListener): this;
+        prependListener(event: "message", listener: MessageListener): this;
+        prependListener(event: Signals, listener: SignalsListener): this;
+        prependListener(event: "newListener", listener: NewListenerListener): this;
+        prependListener(event: "removeListener", listener: RemoveListenerListener): this;
+
+        prependOnceListener(event: "beforeExit", listener: BeforeExitListener): this;
+        prependOnceListener(event: "disconnect", listener: DisconnectListener): this;
+        prependOnceListener(event: "exit", listener: ExitListener): this;
+        prependOnceListener(event: "rejectionHandled", listener: RejectionHandledListener): this;
+        prependOnceListener(event: "uncaughtException", listener: UncaughtExceptionListener): this;
+        prependOnceListener(event: "unhandledRejection", listener: UnhandledRejectionListener): this;
+        prependOnceListener(event: "warning", listener: WarningListener): this;
+        prependOnceListener(event: "message", listener: MessageListener): this;
+        prependOnceListener(event: Signals, listener: SignalsListener): this;
+        prependOnceListener(event: "newListener", listener: NewListenerListener): this;
+        prependOnceListener(event: "removeListener", listener: RemoveListenerListener): this;
+
+        listeners(event: "beforeExit"): BeforeExitListener[];
+        listeners(event: "disconnect"): DisconnectListener[];
+        listeners(event: "exit"): ExitListener[];
+        listeners(event: "rejectionHandled"): RejectionHandledListener[];
+        listeners(event: "uncaughtException"): UncaughtExceptionListener[];
+        listeners(event: "unhandledRejection"): UnhandledRejectionListener[];
+        listeners(event: "warning"): WarningListener[];
+        listeners(event: "message"): MessageListener[];
+        listeners(event: Signals): SignalsListener[];
+        listeners(event: "newListener"): NewListenerListener[];
+        listeners(event: "removeListener"): RemoveListenerListener[];
+    }
+
+    export interface Global {
+        Array: typeof Array;
+        ArrayBuffer: typeof ArrayBuffer;
+        Boolean: typeof Boolean;
+        Buffer: typeof Buffer;
+        DataView: typeof DataView;
+        Date: typeof Date;
+        Error: typeof Error;
+        EvalError: typeof EvalError;
+        Float32Array: typeof Float32Array;
+        Float64Array: typeof Float64Array;
+        Function: typeof Function;
+        GLOBAL: Global;
+        Infinity: typeof Infinity;
+        Int16Array: typeof Int16Array;
+        Int32Array: typeof Int32Array;
+        Int8Array: typeof Int8Array;
+        Intl: typeof Intl;
+        JSON: typeof JSON;
+        Map: MapConstructor;
+        Math: typeof Math;
+        NaN: typeof NaN;
+        Number: typeof Number;
+        Object: typeof Object;
+        Promise: Function;
+        RangeError: typeof RangeError;
+        ReferenceError: typeof ReferenceError;
+        RegExp: typeof RegExp;
+        Set: SetConstructor;
+        String: typeof String;
+        Symbol: Function;
+        SyntaxError: typeof SyntaxError;
+        TypeError: typeof TypeError;
+        URIError: typeof URIError;
+        Uint16Array: typeof Uint16Array;
+        Uint32Array: typeof Uint32Array;
+        Uint8Array: typeof Uint8Array;
+        Uint8ClampedArray: Function;
+        WeakMap: WeakMapConstructor;
+        WeakSet: WeakSetConstructor;
+        clearImmediate: (immediateId: any) => void;
+        clearInterval: (intervalId: NodeJS.Timer) => void;
+        clearTimeout: (timeoutId: NodeJS.Timer) => void;
+        console: typeof console;
+        decodeURI: typeof decodeURI;
+        decodeURIComponent: typeof decodeURIComponent;
+        encodeURI: typeof encodeURI;
+        encodeURIComponent: typeof encodeURIComponent;
+        escape: (str: string) => string;
+        eval: typeof eval;
+        global: Global;
+        isFinite: typeof isFinite;
+        isNaN: typeof isNaN;
+        parseFloat: typeof parseFloat;
+        parseInt: typeof parseInt;
+        process: Process;
+        root: Global;
+        setImmediate: (callback: (...args: any[]) => void, ...args: any[]) => any;
+        setInterval: (callback: (...args: any[]) => void, ms: number, ...args: any[]) => NodeJS.Timer;
+        setTimeout: (callback: (...args: any[]) => void, ms: number, ...args: any[]) => NodeJS.Timer;
+        undefined: typeof undefined;
+        unescape: (str: string) => string;
+        gc: () => void;
+        v8debug?: any;
+    }
+
+    export interface Timer {
+        ref(): void;
+        unref(): void;
+    }
+
+    class Module {
+        static runMain(): void;
+        static wrap(code: string): string;
+
+        static Module: typeof Module;
+
+        exports: any;
+        require: NodeRequireFunction;
+        id: string;
+        filename: string;
+        loaded: boolean;
+        parent: Module | null;
+        children: Module[];
+        paths: string[];
+
+        constructor(id: string, parent?: Module);
+    }
 }
 
 interface IterableIterator<T> { }
@@ -540,59 +814,59 @@ interface IterableIterator<T> { }
  * @deprecated
  */
 interface NodeBuffer extends Uint8Array {
-	write(string: string, offset?: number, length?: number, encoding?: string): number;
-	toString(encoding?: string, start?: number, end?: number): string;
-	toJSON(): { type: 'Buffer', data: any[] };
-	equals(otherBuffer: Buffer): boolean;
-	compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number;
-	copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number;
-	slice(start?: number, end?: number): Buffer;
-	writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
-	writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
-	writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
-	writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
-	readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
-	readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
-	readIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
-	readIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
-	readUInt8(offset: number, noAssert?: boolean): number;
-	readUInt16LE(offset: number, noAssert?: boolean): number;
-	readUInt16BE(offset: number, noAssert?: boolean): number;
-	readUInt32LE(offset: number, noAssert?: boolean): number;
-	readUInt32BE(offset: number, noAssert?: boolean): number;
-	readInt8(offset: number, noAssert?: boolean): number;
-	readInt16LE(offset: number, noAssert?: boolean): number;
-	readInt16BE(offset: number, noAssert?: boolean): number;
-	readInt32LE(offset: number, noAssert?: boolean): number;
-	readInt32BE(offset: number, noAssert?: boolean): number;
-	readFloatLE(offset: number, noAssert?: boolean): number;
-	readFloatBE(offset: number, noAssert?: boolean): number;
-	readDoubleLE(offset: number, noAssert?: boolean): number;
-	readDoubleBE(offset: number, noAssert?: boolean): number;
-	swap16(): Buffer;
-	swap32(): Buffer;
-	swap64(): Buffer;
-	writeUInt8(value: number, offset: number, noAssert?: boolean): number;
-	writeUInt16LE(value: number, offset: number, noAssert?: boolean): number;
-	writeUInt16BE(value: number, offset: number, noAssert?: boolean): number;
-	writeUInt32LE(value: number, offset: number, noAssert?: boolean): number;
-	writeUInt32BE(value: number, offset: number, noAssert?: boolean): number;
-	writeInt8(value: number, offset: number, noAssert?: boolean): number;
-	writeInt16LE(value: number, offset: number, noAssert?: boolean): number;
-	writeInt16BE(value: number, offset: number, noAssert?: boolean): number;
-	writeInt32LE(value: number, offset: number, noAssert?: boolean): number;
-	writeInt32BE(value: number, offset: number, noAssert?: boolean): number;
-	writeFloatLE(value: number, offset: number, noAssert?: boolean): number;
-	writeFloatBE(value: number, offset: number, noAssert?: boolean): number;
-	writeDoubleLE(value: number, offset: number, noAssert?: boolean): number;
-	writeDoubleBE(value: number, offset: number, noAssert?: boolean): number;
-	fill(value: any, offset?: number, end?: number): this;
-	indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
-	lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
-	entries(): IterableIterator<[number, number]>;
-	includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean;
-	keys(): IterableIterator<number>;
-	values(): IterableIterator<number>;
+    write(string: string, offset?: number, length?: number, encoding?: string): number;
+    toString(encoding?: string, start?: number, end?: number): string;
+    toJSON(): { type: 'Buffer', data: any[] };
+    equals(otherBuffer: Buffer): boolean;
+    compare(otherBuffer: Buffer, targetStart?: number, targetEnd?: number, sourceStart?: number, sourceEnd?: number): number;
+    copy(targetBuffer: Buffer, targetStart?: number, sourceStart?: number, sourceEnd?: number): number;
+    slice(start?: number, end?: number): Buffer;
+    writeUIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeUIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntLE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    writeIntBE(value: number, offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntLE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readIntBE(offset: number, byteLength: number, noAssert?: boolean): number;
+    readUInt8(offset: number, noAssert?: boolean): number;
+    readUInt16LE(offset: number, noAssert?: boolean): number;
+    readUInt16BE(offset: number, noAssert?: boolean): number;
+    readUInt32LE(offset: number, noAssert?: boolean): number;
+    readUInt32BE(offset: number, noAssert?: boolean): number;
+    readInt8(offset: number, noAssert?: boolean): number;
+    readInt16LE(offset: number, noAssert?: boolean): number;
+    readInt16BE(offset: number, noAssert?: boolean): number;
+    readInt32LE(offset: number, noAssert?: boolean): number;
+    readInt32BE(offset: number, noAssert?: boolean): number;
+    readFloatLE(offset: number, noAssert?: boolean): number;
+    readFloatBE(offset: number, noAssert?: boolean): number;
+    readDoubleLE(offset: number, noAssert?: boolean): number;
+    readDoubleBE(offset: number, noAssert?: boolean): number;
+    swap16(): Buffer;
+    swap32(): Buffer;
+    swap64(): Buffer;
+    writeUInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeUInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt8(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt16BE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32LE(value: number, offset: number, noAssert?: boolean): number;
+    writeInt32BE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatLE(value: number, offset: number, noAssert?: boolean): number;
+    writeFloatBE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleLE(value: number, offset: number, noAssert?: boolean): number;
+    writeDoubleBE(value: number, offset: number, noAssert?: boolean): number;
+    fill(value: any, offset?: number, end?: number): this;
+    indexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    lastIndexOf(value: string | number | Buffer, byteOffset?: number, encoding?: string): number;
+    entries(): IterableIterator<[number, number]>;
+    includes(value: string | number | Buffer, byteOffset?: number, encoding?: string): boolean;
+    keys(): IterableIterator<number>;
+    values(): IterableIterator<number>;
 }
 
 /************************************************
@@ -601,205 +875,269 @@ interface NodeBuffer extends Uint8Array {
 *                                               *
 ************************************************/
 declare module "buffer" {
-	export var INSPECT_MAX_BYTES: number;
-	var BuffType: typeof Buffer;
-	var SlowBuffType: typeof SlowBuffer;
-	export { BuffType as Buffer, SlowBuffType as SlowBuffer };
+    export var INSPECT_MAX_BYTES: number;
+    var BuffType: typeof Buffer;
+    var SlowBuffType: typeof SlowBuffer;
+    export { BuffType as Buffer, SlowBuffType as SlowBuffer };
 }
 
 declare module "querystring" {
-	export interface StringifyOptions {
-		encodeURIComponent?: Function;
-	}
-
-	export interface ParseOptions {
-		maxKeys?: number;
-		decodeURIComponent?: Function;
-	}
-
-	export function stringify<T>(obj: T, sep?: string, eq?: string, options?: StringifyOptions): string;
-	export function parse(str: string, sep?: string, eq?: string, options?: ParseOptions): any;
-	export function parse<T extends {}>(str: string, sep?: string, eq?: string, options?: ParseOptions): T;
-	export function escape(str: string): string;
-	export function unescape(str: string): string;
+    export interface StringifyOptions {
+        encodeURIComponent?: Function;
+    }
+
+    export interface ParseOptions {
+        maxKeys?: number;
+        decodeURIComponent?: Function;
+    }
+
+    interface ParsedUrlQuery { [key: string]: string | string[]; }
+
+    export function stringify<T>(obj: T, sep?: string, eq?: string, options?: StringifyOptions): string;
+    export function parse(str: string, sep?: string, eq?: string, options?: ParseOptions): ParsedUrlQuery;
+    export function parse<T extends {}>(str: string, sep?: string, eq?: string, options?: ParseOptions): T;
+    export function escape(str: string): string;
+    export function unescape(str: string): string;
 }
 
 declare module "events" {
-	class internal extends NodeJS.EventEmitter { }
-
-	namespace internal {
-		export class EventEmitter extends internal {
-			static listenerCount(emitter: EventEmitter, event: string | symbol): number; // deprecated
-			static defaultMaxListeners: number;
-
-			addListener(event: string | symbol, listener: Function): this;
-			on(event: string | symbol, listener: Function): this;
-			once(event: string | symbol, listener: Function): this;
-			prependListener(event: string | symbol, listener: Function): this;
-			prependOnceListener(event: string | symbol, listener: Function): this;
-			removeListener(event: string | symbol, listener: Function): this;
-			removeAllListeners(event?: string | symbol): this;
-			setMaxListeners(n: number): this;
-			getMaxListeners(): number;
-			listeners(event: string | symbol): Function[];
-			emit(event: string | symbol, ...args: any[]): boolean;
-			eventNames(): (string | symbol)[];
-			listenerCount(type: string | symbol): number;
-		}
-	}
-
-	export = internal;
+    class internal extends NodeJS.EventEmitter { }
+
+    namespace internal {
+        export class EventEmitter extends internal {
+            static listenerCount(emitter: EventEmitter, event: string | symbol): number; // deprecated
+            static defaultMaxListeners: number;
+
+            addListener(event: string | symbol, listener: (...args: any[]) => void): this;
+            on(event: string | symbol, listener: (...args: any[]) => void): this;
+            once(event: string | symbol, listener: (...args: any[]) => void): this;
+            prependListener(event: string | symbol, listener: (...args: any[]) => void): this;
+            prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this;
+            removeListener(event: string | symbol, listener: (...args: any[]) => void): this;
+            removeAllListeners(event?: string | symbol): this;
+            setMaxListeners(n: number): this;
+            getMaxListeners(): number;
+            listeners(event: string | symbol): Function[];
+            emit(event: string | symbol, ...args: any[]): boolean;
+            eventNames(): Array<string | symbol>;
+            listenerCount(type: string | symbol): number;
+        }
+    }
+
+    export = internal;
 }
 
 declare module "http" {
-	import * as events from "events";
-	import * as net from "net";
-	import * as stream from "stream";
-
-	export interface RequestOptions {
-		protocol?: string;
-		host?: string;
-		hostname?: string;
-		family?: number;
-		port?: number;
-		localAddress?: string;
-		socketPath?: string;
-		method?: string;
-		path?: string;
-		headers?: { [key: string]: any };
-		auth?: string;
-		agent?: Agent | boolean;
-		timeout?: number;
-	}
-
-	export interface Server extends net.Server {
-		setTimeout(msecs: number, callback: Function): void;
-		maxHeadersCount: number;
-		timeout: number;
-		listening: boolean;
-	}
+    import * as events from "events";
+    import * as net from "net";
+    import * as stream from "stream";
+    import { URL } from "url";
+
+    // incoming headers will never contain number
+    export interface IncomingHttpHeaders {
+        'accept'?: string;
+        'access-control-allow-origin'?: string;
+        'access-control-allow-credentials'?: string;
+        'access-control-expose-headers'?: string;
+        'access-control-max-age'?: string;
+        'access-control-allow-methods'?: string;
+        'access-control-allow-headers'?: string;
+        'accept-patch'?: string;
+        'accept-ranges'?: string;
+        'age'?: string;
+        'allow'?: string;
+        'alt-svc'?: string;
+        'cache-control'?: string;
+        'connection'?: string;
+        'content-disposition'?: string;
+        'content-encoding'?: string;
+        'content-language'?: string;
+        'content-length'?: string;
+        'content-location'?: string;
+        'content-range'?: string;
+        'content-type'?: string;
+        'date'?: string;
+        'expires'?: string;
+        'host'?: string;
+        'last-modified'?: string;
+        'location'?: string;
+        'pragma'?: string;
+        'proxy-authenticate'?: string;
+        'public-key-pins'?: string;
+        'retry-after'?: string;
+        'set-cookie'?: string[];
+        'strict-transport-security'?: string;
+        'trailer'?: string;
+        'transfer-encoding'?: string;
+        'tk'?: string;
+        'upgrade'?: string;
+        'vary'?: string;
+        'via'?: string;
+        'warning'?: string;
+        'www-authenticate'?: string;
+        [header: string]: string | string[] | undefined;
+    }
+
+    // outgoing headers allows numbers (as they are converted internally to strings)
+    export interface OutgoingHttpHeaders {
+        [header: string]: number | string | string[] | undefined;
+    }
+
+    export interface ClientRequestArgs {
+        protocol?: string;
+        host?: string;
+        hostname?: string;
+        family?: number;
+        port?: number | string;
+        defaultPort?: number | string;
+        localAddress?: string;
+        socketPath?: string;
+        method?: string;
+        path?: string;
+        headers?: OutgoingHttpHeaders;
+        auth?: string;
+        agent?: Agent | boolean;
+        _defaultAgent?: Agent;
+        timeout?: number;
+        // https://github.com/nodejs/node/blob/master/lib/_http_client.js#L278
+        createConnection?: (options: ClientRequestArgs, oncreate: (err: Error, socket: net.Socket) => void) => net.Socket;
+    }
+
+    export class Server extends net.Server {
+        constructor(requestListener?: (req: IncomingMessage, res: ServerResponse) => void);
+
+        setTimeout(msecs?: number, callback?: () => void): this;
+        setTimeout(callback: () => void): this;
+        maxHeadersCount: number;
+        timeout: number;
+        keepAliveTimeout: number;
+    }
     /**
      * @deprecated Use IncomingMessage
      */
-	export interface ServerRequest extends IncomingMessage {
-		connection: net.Socket;
-	}
-	export interface ServerResponse extends stream.Writable {
-		// Extended base methods
-		write(buffer: Buffer): boolean;
-		write(buffer: Buffer, cb?: Function): boolean;
-		write(str: string, cb?: Function): boolean;
-		write(str: string, encoding?: string, cb?: Function): boolean;
-		write(str: string, encoding?: string, fd?: string): boolean;
-
-		writeContinue(): void;
-		writeHead(statusCode: number, reasonPhrase?: string, headers?: any): void;
-		writeHead(statusCode: number, headers?: any): void;
-		statusCode: number;
-		statusMessage: string;
-		headersSent: boolean;
-		setHeader(name: string, value: string | string[]): void;
-		setTimeout(msecs: number, callback: Function): ServerResponse;
-		sendDate: boolean;
-		getHeader(name: string): string;
-		removeHeader(name: string): void;
-		write(chunk: any, encoding?: string): any;
-		addTrailers(headers: any): void;
-		finished: boolean;
-
-		// Extended base methods
-		end(): void;
-		end(buffer: Buffer, cb?: Function): void;
-		end(str: string, cb?: Function): void;
-		end(str: string, encoding?: string, cb?: Function): void;
-		end(data?: any, encoding?: string): void;
-	}
-	export interface ClientRequest extends stream.Writable {
-		// Extended base methods
-		write(buffer: Buffer): boolean;
-		write(buffer: Buffer, cb?: Function): boolean;
-		write(str: string, cb?: Function): boolean;
-		write(str: string, encoding?: string, cb?: Function): boolean;
-		write(str: string, encoding?: string, fd?: string): boolean;
-
-		write(chunk: any, encoding?: string): void;
-		abort(): void;
-		setTimeout(timeout: number, callback?: Function): void;
-		setNoDelay(noDelay?: boolean): void;
-		setSocketKeepAlive(enable?: boolean, initialDelay?: number): void;
-
-		setHeader(name: string, value: string | string[]): void;
-		getHeader(name: string): string;
-		removeHeader(name: string): void;
-		addTrailers(headers: any): void;
-
-		// Extended base methods
-		end(): void;
-		end(buffer: Buffer, cb?: Function): void;
-		end(str: string, cb?: Function): void;
-		end(str: string, encoding?: string, cb?: Function): void;
-		end(data?: any, encoding?: string): void;
-	}
-	export interface IncomingMessage extends stream.Readable {
-		httpVersion: string;
-		httpVersionMajor: number;
-		httpVersionMinor: number;
-		connection: net.Socket;
-		headers: any;
-		rawHeaders: string[];
-		trailers: any;
-		rawTrailers: any;
-		setTimeout(msecs: number, callback: Function): NodeJS.Timer;
+    export class ServerRequest extends IncomingMessage {
+        connection: net.Socket;
+    }
+
+    // https://github.com/nodejs/node/blob/master/lib/_http_outgoing.js
+    export class OutgoingMessage extends stream.Writable {
+        upgrading: boolean;
+        chunkedEncoding: boolean;
+        shouldKeepAlive: boolean;
+        useChunkedEncodingByDefault: boolean;
+        sendDate: boolean;
+        finished: boolean;
+        headersSent: boolean;
+        connection: net.Socket;
+
+        constructor();
+
+        setTimeout(msecs: number, callback?: () => void): this;
+        destroy(error: Error): void;
+        setHeader(name: string, value: number | string | string[]): void;
+        getHeader(name: string): number | string | string[] | undefined;
+        getHeaders(): OutgoingHttpHeaders;
+        getHeaderNames(): string[];
+        hasHeader(name: string): boolean;
+        removeHeader(name: string): void;
+        addTrailers(headers: OutgoingHttpHeaders | Array<[string, string]>): void;
+        flushHeaders(): void;
+    }
+
+    // https://github.com/nodejs/node/blob/master/lib/_http_server.js#L108-L256
+    export class ServerResponse extends OutgoingMessage {
+        statusCode: number;
+        statusMessage: string;
+
+        constructor(req: IncomingMessage);
+
+        assignSocket(socket: net.Socket): void;
+        detachSocket(socket: net.Socket): void;
+        // https://github.com/nodejs/node/blob/master/test/parallel/test-http-write-callbacks.js#L53
+        // no args in writeContinue callback
+        writeContinue(callback?: () => void): void;
+        writeHead(statusCode: number, reasonPhrase?: string, headers?: OutgoingHttpHeaders): void;
+        writeHead(statusCode: number, headers?: OutgoingHttpHeaders): void;
+    }
+
+    // https://github.com/nodejs/node/blob/master/lib/_http_client.js#L77
+    export class ClientRequest extends OutgoingMessage {
+        connection: net.Socket;
+        socket: net.Socket;
+        aborted: number;
+
+        constructor(url: string | URL | ClientRequestArgs, cb?: (res: IncomingMessage) => void);
+
+        abort(): void;
+        onSocket(socket: net.Socket): void;
+        setTimeout(timeout: number, callback?: () => void): this;
+        setNoDelay(noDelay?: boolean): void;
+        setSocketKeepAlive(enable?: boolean, initialDelay?: number): void;
+    }
+
+    export class IncomingMessage extends stream.Readable {
+        constructor(socket: net.Socket);
+
+        httpVersion: string;
+        httpVersionMajor: number;
+        httpVersionMinor: number;
+        connection: net.Socket;
+        headers: IncomingHttpHeaders;
+        rawHeaders: string[];
+        trailers: { [key: string]: string | undefined };
+        rawTrailers: string[];
+        setTimeout(msecs: number, callback: () => void): this;
         /**
          * Only valid for request obtained from http.Server.
          */
-		method?: string;
+        method?: string;
         /**
          * Only valid for request obtained from http.Server.
          */
-		url?: string;
+        url?: string;
         /**
          * Only valid for response obtained from http.ClientRequest.
          */
-		statusCode?: number;
+        statusCode?: number;
         /**
          * Only valid for response obtained from http.ClientRequest.
          */
-		statusMessage?: string;
-		socket: net.Socket;
-		destroy(error?: Error): void;
-	}
+        statusMessage?: string;
+        socket: net.Socket;
+        destroy(error?: Error): void;
+    }
+
     /**
      * @deprecated Use IncomingMessage
      */
-	export interface ClientResponse extends IncomingMessage { }
+    export class ClientResponse extends IncomingMessage { }
 
-	export interface AgentOptions {
+    export interface AgentOptions {
         /**
          * Keep sockets around in a pool to be used by other requests in the future. Default = false
          */
-		keepAlive?: boolean;
+        keepAlive?: boolean;
         /**
          * When using HTTP KeepAlive, how often to send TCP KeepAlive packets over sockets being kept alive. Default = 1000.
          * Only relevant if keepAlive is set to true.
          */
-		keepAliveMsecs?: number;
+        keepAliveMsecs?: number;
         /**
          * Maximum number of sockets to allow per host. Default for Node 0.10 is 5, default for Node 0.12 is Infinity
          */
-		maxSockets?: number;
+        maxSockets?: number;
         /**
          * Maximum number of sockets to leave open in a free state. Only relevant if keepAlive is set to true. Default = 256.
          */
-		maxFreeSockets?: number;
-	}
+        maxFreeSockets?: number;
+    }
 
-	export class Agent {
-		maxSockets: number;
-		sockets: any;
-		requests: any;
+    export class Agent {
+        maxSockets: number;
+        sockets: any;
+        requests: any;
 
-		constructor(opts?: AgentOptions);
+        constructor(opts?: AgentOptions);
 
         /**
          * Destroy any sockets that are currently in use by the agent.
@@ -807,62 +1145,61 @@ declare module "http" {
          * then it is best to explicitly shut down the agent when you know that it will no longer be used. Otherwise,
          * sockets may hang open for quite a long time before the server terminates them.
          */
-		destroy(): void;
-	}
+        destroy(): void;
+    }
+
+    export var METHODS: string[];
 
-	export var METHODS: string[];
+    export var STATUS_CODES: {
+        [errorCode: number]: string | undefined;
+        [errorCode: string]: string | undefined;
+    };
 
-	export var STATUS_CODES: {
-		[errorCode: number]: string;
-		[errorCode: string]: string;
-	};
-	export function createServer(requestListener?: (request: IncomingMessage, response: ServerResponse) => void): Server;
-	export function createClient(port?: number, host?: string): any;
-	export function request(options: RequestOptions, callback?: (res: IncomingMessage) => void): ClientRequest;
-	export function get(options: any, callback?: (res: IncomingMessage) => void): ClientRequest;
-	export var globalAgent: Agent;
+    export function createServer(requestListener?: (request: IncomingMessage, response: ServerResponse) => void): Server;
+    export function createClient(port?: number, host?: string): any;
+
+    // although RequestOptions are passed as ClientRequestArgs to ClientRequest directly,
+    // create interface RequestOptions would make the naming more clear to developers
+    export interface RequestOptions extends ClientRequestArgs { }
+    export function request(options: RequestOptions | string | URL, callback?: (res: IncomingMessage) => void): ClientRequest;
+    export function get(options: RequestOptions | string | URL, callback?: (res: IncomingMessage) => void): ClientRequest;
+    export var globalAgent: Agent;
 }
 
 declare module "cluster" {
-	import * as child from "child_process";
-	import * as events from "events";
-	import * as net from "net";
-
-	// interfaces
-	export interface ClusterSettings {
-		execArgv?: string[]; // default: process.execArgv
-		exec?: string;
-		args?: string[];
-		silent?: boolean;
-		stdio?: any[];
-		uid?: number;
-		gid?: number;
-	}
-
-	export interface ClusterSetupMasterSettings {
-		exec?: string;  // default: process.argv[1]
-		args?: string[];  // default: process.argv.slice(2)
-		silent?: boolean;  // default: false
-		stdio?: any[];
-	}
-
-	export interface Address {
-		address: string;
-		port: number;
-		addressType: number | "udp4" | "udp6";  // 4, 6, -1, "udp4", "udp6"
-	}
-
-	export class Worker extends events.EventEmitter {
-		id: string;
-		process: child.ChildProcess;
-		suicide: boolean;
-		send(message: any, sendHandle?: any, callback?: (error: Error) => void): boolean;
-		kill(signal?: string): void;
-		destroy(signal?: string): void;
-		disconnect(): void;
-		isConnected(): boolean;
-		isDead(): boolean;
-		exitedAfterDisconnect: boolean;
+    import * as child from "child_process";
+    import * as events from "events";
+    import * as net from "net";
+
+    // interfaces
+    export interface ClusterSettings {
+        execArgv?: string[]; // default: process.execArgv
+        exec?: string;
+        args?: string[];
+        silent?: boolean;
+        stdio?: any[];
+        uid?: number;
+        gid?: number;
+        inspectPort?: number | (() => number);
+    }
+
+    export interface Address {
+        address: string;
+        port: number;
+        addressType: number | "udp4" | "udp6";  // 4, 6, -1, "udp4", "udp6"
+    }
+
+    export class Worker extends events.EventEmitter {
+        id: number;
+        process: child.ChildProcess;
+        suicide: boolean;
+        send(message: any, sendHandle?: any, callback?: (error: Error) => void): boolean;
+        kill(signal?: string): void;
+        destroy(signal?: string): void;
+        disconnect(): void;
+        isConnected(): boolean;
+        isDead(): boolean;
+        exitedAfterDisconnect: boolean;
 
         /**
          * events.EventEmitter
@@ -873,68 +1210,68 @@ declare module "cluster" {
          *   5. message
          *   6. online
          */
-		addListener(event: string, listener: Function): this;
-		addListener(event: "disconnect", listener: () => void): this;
-		addListener(event: "error", listener: (error: Error) => void): this;
-		addListener(event: "exit", listener: (code: number, signal: string) => void): this;
-		addListener(event: "listening", listener: (address: Address) => void): this;
-		addListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		addListener(event: "online", listener: () => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "disconnect", listener: () => void): boolean
-		emit(event: "error", listener: (error: Error) => void): boolean
-		emit(event: "exit", listener: (code: number, signal: string) => void): boolean
-		emit(event: "listening", listener: (address: Address) => void): boolean
-		emit(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): boolean
-		emit(event: "online", listener: () => void): boolean
-
-		on(event: string, listener: Function): this;
-		on(event: "disconnect", listener: () => void): this;
-		on(event: "error", listener: (error: Error) => void): this;
-		on(event: "exit", listener: (code: number, signal: string) => void): this;
-		on(event: "listening", listener: (address: Address) => void): this;
-		on(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		on(event: "online", listener: () => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "disconnect", listener: () => void): this;
-		once(event: "error", listener: (error: Error) => void): this;
-		once(event: "exit", listener: (code: number, signal: string) => void): this;
-		once(event: "listening", listener: (address: Address) => void): this;
-		once(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		once(event: "online", listener: () => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "disconnect", listener: () => void): this;
-		prependListener(event: "error", listener: (error: Error) => void): this;
-		prependListener(event: "exit", listener: (code: number, signal: string) => void): this;
-		prependListener(event: "listening", listener: (address: Address) => void): this;
-		prependListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		prependListener(event: "online", listener: () => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "disconnect", listener: () => void): this;
-		prependOnceListener(event: "error", listener: (error: Error) => void): this;
-		prependOnceListener(event: "exit", listener: (code: number, signal: string) => void): this;
-		prependOnceListener(event: "listening", listener: (address: Address) => void): this;
-		prependOnceListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		prependOnceListener(event: "online", listener: () => void): this;
-	}
-
-	export interface Cluster extends events.EventEmitter {
-		Worker: Worker;
-		disconnect(callback?: Function): void;
-		fork(env?: any): Worker;
-		isMaster: boolean;
-		isWorker: boolean;
-		// TODO: cluster.schedulingPolicy
-		settings: ClusterSettings;
-		setupMaster(settings?: ClusterSetupMasterSettings): void;
-		worker: Worker;
-		workers: {
-			[index: string]: Worker
-		};
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "disconnect", listener: () => void): this;
+        addListener(event: "error", listener: (error: Error) => void): this;
+        addListener(event: "exit", listener: (code: number, signal: string) => void): this;
+        addListener(event: "listening", listener: (address: Address) => void): this;
+        addListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        addListener(event: "online", listener: () => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "disconnect"): boolean;
+        emit(event: "error", error: Error): boolean;
+        emit(event: "exit", code: number, signal: string): boolean;
+        emit(event: "listening", address: Address): boolean;
+        emit(event: "message", message: any, handle: net.Socket | net.Server): boolean;
+        emit(event: "online"): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "disconnect", listener: () => void): this;
+        on(event: "error", listener: (error: Error) => void): this;
+        on(event: "exit", listener: (code: number, signal: string) => void): this;
+        on(event: "listening", listener: (address: Address) => void): this;
+        on(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        on(event: "online", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "disconnect", listener: () => void): this;
+        once(event: "error", listener: (error: Error) => void): this;
+        once(event: "exit", listener: (code: number, signal: string) => void): this;
+        once(event: "listening", listener: (address: Address) => void): this;
+        once(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        once(event: "online", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "disconnect", listener: () => void): this;
+        prependListener(event: "error", listener: (error: Error) => void): this;
+        prependListener(event: "exit", listener: (code: number, signal: string) => void): this;
+        prependListener(event: "listening", listener: (address: Address) => void): this;
+        prependListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        prependListener(event: "online", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "disconnect", listener: () => void): this;
+        prependOnceListener(event: "error", listener: (error: Error) => void): this;
+        prependOnceListener(event: "exit", listener: (code: number, signal: string) => void): this;
+        prependOnceListener(event: "listening", listener: (address: Address) => void): this;
+        prependOnceListener(event: "message", listener: (message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        prependOnceListener(event: "online", listener: () => void): this;
+    }
+
+    export interface Cluster extends events.EventEmitter {
+        Worker: Worker;
+        disconnect(callback?: Function): void;
+        fork(env?: any): Worker;
+        isMaster: boolean;
+        isWorker: boolean;
+        // TODO: cluster.schedulingPolicy
+        settings: ClusterSettings;
+        setupMaster(settings?: ClusterSettings): void;
+        worker?: Worker;
+        workers?: {
+            [index: string]: Worker | undefined
+        };
 
         /**
          * events.EventEmitter
@@ -946,73 +1283,72 @@ declare module "cluster" {
          *   6. online
          *   7. setup
          */
-		addListener(event: string, listener: Function): this;
-		addListener(event: "disconnect", listener: (worker: Worker) => void): this;
-		addListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
-		addListener(event: "fork", listener: (worker: Worker) => void): this;
-		addListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
-		addListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		addListener(event: "online", listener: (worker: Worker) => void): this;
-		addListener(event: "setup", listener: (settings: any) => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "disconnect", listener: (worker: Worker) => void): boolean;
-		emit(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): boolean;
-		emit(event: "fork", listener: (worker: Worker) => void): boolean;
-		emit(event: "listening", listener: (worker: Worker, address: Address) => void): boolean;
-		emit(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): boolean;
-		emit(event: "online", listener: (worker: Worker) => void): boolean;
-		emit(event: "setup", listener: (settings: any) => void): boolean;
-
-		on(event: string, listener: Function): this;
-		on(event: "disconnect", listener: (worker: Worker) => void): this;
-		on(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
-		on(event: "fork", listener: (worker: Worker) => void): this;
-		on(event: "listening", listener: (worker: Worker, address: Address) => void): this;
-		on(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		on(event: "online", listener: (worker: Worker) => void): this;
-		on(event: "setup", listener: (settings: any) => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "disconnect", listener: (worker: Worker) => void): this;
-		once(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
-		once(event: "fork", listener: (worker: Worker) => void): this;
-		once(event: "listening", listener: (worker: Worker, address: Address) => void): this;
-		once(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		once(event: "online", listener: (worker: Worker) => void): this;
-		once(event: "setup", listener: (settings: any) => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "disconnect", listener: (worker: Worker) => void): this;
-		prependListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
-		prependListener(event: "fork", listener: (worker: Worker) => void): this;
-		prependListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
-		prependListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		prependListener(event: "online", listener: (worker: Worker) => void): this;
-		prependListener(event: "setup", listener: (settings: any) => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "disconnect", listener: (worker: Worker) => void): this;
-		prependOnceListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
-		prependOnceListener(event: "fork", listener: (worker: Worker) => void): this;
-		prependOnceListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
-		prependOnceListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
-		prependOnceListener(event: "online", listener: (worker: Worker) => void): this;
-		prependOnceListener(event: "setup", listener: (settings: any) => void): this;
-
-	}
-
-	export function disconnect(callback?: Function): void;
-	export function fork(env?: any): Worker;
-	export var isMaster: boolean;
-	export var isWorker: boolean;
-	// TODO: cluster.schedulingPolicy
-	export var settings: ClusterSettings;
-	export function setupMaster(settings?: ClusterSetupMasterSettings): void;
-	export var worker: Worker;
-	export var workers: {
-		[index: string]: Worker
-	};
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "disconnect", listener: (worker: Worker) => void): this;
+        addListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
+        addListener(event: "fork", listener: (worker: Worker) => void): this;
+        addListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
+        addListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        addListener(event: "online", listener: (worker: Worker) => void): this;
+        addListener(event: "setup", listener: (settings: any) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "disconnect", worker: Worker): boolean;
+        emit(event: "exit", worker: Worker, code: number, signal: string): boolean;
+        emit(event: "fork", worker: Worker): boolean;
+        emit(event: "listening", worker: Worker, address: Address): boolean;
+        emit(event: "message", worker: Worker, message: any, handle: net.Socket | net.Server): boolean;
+        emit(event: "online", worker: Worker): boolean;
+        emit(event: "setup", settings: any): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "disconnect", listener: (worker: Worker) => void): this;
+        on(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
+        on(event: "fork", listener: (worker: Worker) => void): this;
+        on(event: "listening", listener: (worker: Worker, address: Address) => void): this;
+        on(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        on(event: "online", listener: (worker: Worker) => void): this;
+        on(event: "setup", listener: (settings: any) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "disconnect", listener: (worker: Worker) => void): this;
+        once(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
+        once(event: "fork", listener: (worker: Worker) => void): this;
+        once(event: "listening", listener: (worker: Worker, address: Address) => void): this;
+        once(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        once(event: "online", listener: (worker: Worker) => void): this;
+        once(event: "setup", listener: (settings: any) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "disconnect", listener: (worker: Worker) => void): this;
+        prependListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
+        prependListener(event: "fork", listener: (worker: Worker) => void): this;
+        prependListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
+        prependListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        prependListener(event: "online", listener: (worker: Worker) => void): this;
+        prependListener(event: "setup", listener: (settings: any) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "disconnect", listener: (worker: Worker) => void): this;
+        prependOnceListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): this;
+        prependOnceListener(event: "fork", listener: (worker: Worker) => void): this;
+        prependOnceListener(event: "listening", listener: (worker: Worker, address: Address) => void): this;
+        prependOnceListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): this;  // the handle is a net.Socket or net.Server object, or undefined.
+        prependOnceListener(event: "online", listener: (worker: Worker) => void): this;
+        prependOnceListener(event: "setup", listener: (settings: any) => void): this;
+    }
+
+    export function disconnect(callback?: Function): void;
+    export function fork(env?: any): Worker;
+    export var isMaster: boolean;
+    export var isWorker: boolean;
+    // TODO: cluster.schedulingPolicy
+    export var settings: ClusterSettings;
+    export function setupMaster(settings?: ClusterSettings): void;
+    export var worker: Worker;
+    export var workers: {
+        [index: string]: Worker | undefined
+    };
 
     /**
      * events.EventEmitter
@@ -1024,499 +1360,520 @@ declare module "cluster" {
      *   6. online
      *   7. setup
      */
-	export function addListener(event: string, listener: Function): Cluster;
-	export function addListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
-	export function addListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
-	export function addListener(event: "fork", listener: (worker: Worker) => void): Cluster;
-	export function addListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
-	export function addListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
-	export function addListener(event: "online", listener: (worker: Worker) => void): Cluster;
-	export function addListener(event: "setup", listener: (settings: any) => void): Cluster;
-
-	export function emit(event: string | symbol, ...args: any[]): boolean;
-	export function emit(event: "disconnect", listener: (worker: Worker) => void): boolean;
-	export function emit(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): boolean;
-	export function emit(event: "fork", listener: (worker: Worker) => void): boolean;
-	export function emit(event: "listening", listener: (worker: Worker, address: Address) => void): boolean;
-	export function emit(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): boolean;
-	export function emit(event: "online", listener: (worker: Worker) => void): boolean;
-	export function emit(event: "setup", listener: (settings: any) => void): boolean;
-
-	export function on(event: string, listener: Function): Cluster;
-	export function on(event: "disconnect", listener: (worker: Worker) => void): Cluster;
-	export function on(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
-	export function on(event: "fork", listener: (worker: Worker) => void): Cluster;
-	export function on(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
-	export function on(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
-	export function on(event: "online", listener: (worker: Worker) => void): Cluster;
-	export function on(event: "setup", listener: (settings: any) => void): Cluster;
-
-	export function once(event: string, listener: Function): Cluster;
-	export function once(event: "disconnect", listener: (worker: Worker) => void): Cluster;
-	export function once(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
-	export function once(event: "fork", listener: (worker: Worker) => void): Cluster;
-	export function once(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
-	export function once(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
-	export function once(event: "online", listener: (worker: Worker) => void): Cluster;
-	export function once(event: "setup", listener: (settings: any) => void): Cluster;
-
-	export function removeListener(event: string, listener: Function): Cluster;
-	export function removeAllListeners(event?: string): Cluster;
-	export function setMaxListeners(n: number): Cluster;
-	export function getMaxListeners(): number;
-	export function listeners(event: string): Function[];
-	export function listenerCount(type: string): number;
-
-	export function prependListener(event: string, listener: Function): Cluster;
-	export function prependListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
-	export function prependListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
-	export function prependListener(event: "fork", listener: (worker: Worker) => void): Cluster;
-	export function prependListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
-	export function prependListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
-	export function prependListener(event: "online", listener: (worker: Worker) => void): Cluster;
-	export function prependListener(event: "setup", listener: (settings: any) => void): Cluster;
-
-	export function prependOnceListener(event: string, listener: Function): Cluster;
-	export function prependOnceListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
-	export function prependOnceListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
-	export function prependOnceListener(event: "fork", listener: (worker: Worker) => void): Cluster;
-	export function prependOnceListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
-	export function prependOnceListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
-	export function prependOnceListener(event: "online", listener: (worker: Worker) => void): Cluster;
-	export function prependOnceListener(event: "setup", listener: (settings: any) => void): Cluster;
-
-	export function eventNames(): string[];
+    export function addListener(event: string, listener: (...args: any[]) => void): Cluster;
+    export function addListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
+    export function addListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
+    export function addListener(event: "fork", listener: (worker: Worker) => void): Cluster;
+    export function addListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
+    export function addListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
+    export function addListener(event: "online", listener: (worker: Worker) => void): Cluster;
+    export function addListener(event: "setup", listener: (settings: any) => void): Cluster;
+
+    export function emit(event: string | symbol, ...args: any[]): boolean;
+    export function emit(event: "disconnect", worker: Worker): boolean;
+    export function emit(event: "exit", worker: Worker, code: number, signal: string): boolean;
+    export function emit(event: "fork", worker: Worker): boolean;
+    export function emit(event: "listening", worker: Worker, address: Address): boolean;
+    export function emit(event: "message", worker: Worker, message: any, handle: net.Socket | net.Server): boolean;
+    export function emit(event: "online", worker: Worker): boolean;
+    export function emit(event: "setup", settings: any): boolean;
+
+    export function on(event: string, listener: (...args: any[]) => void): Cluster;
+    export function on(event: "disconnect", listener: (worker: Worker) => void): Cluster;
+    export function on(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
+    export function on(event: "fork", listener: (worker: Worker) => void): Cluster;
+    export function on(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
+    export function on(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
+    export function on(event: "online", listener: (worker: Worker) => void): Cluster;
+    export function on(event: "setup", listener: (settings: any) => void): Cluster;
+
+    export function once(event: string, listener: (...args: any[]) => void): Cluster;
+    export function once(event: "disconnect", listener: (worker: Worker) => void): Cluster;
+    export function once(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
+    export function once(event: "fork", listener: (worker: Worker) => void): Cluster;
+    export function once(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
+    export function once(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
+    export function once(event: "online", listener: (worker: Worker) => void): Cluster;
+    export function once(event: "setup", listener: (settings: any) => void): Cluster;
+
+    export function removeListener(event: string, listener: (...args: any[]) => void): Cluster;
+    export function removeAllListeners(event?: string): Cluster;
+    export function setMaxListeners(n: number): Cluster;
+    export function getMaxListeners(): number;
+    export function listeners(event: string): Function[];
+    export function listenerCount(type: string): number;
+
+    export function prependListener(event: string, listener: (...args: any[]) => void): Cluster;
+    export function prependListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
+    export function prependListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
+    export function prependListener(event: "fork", listener: (worker: Worker) => void): Cluster;
+    export function prependListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
+    export function prependListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
+    export function prependListener(event: "online", listener: (worker: Worker) => void): Cluster;
+    export function prependListener(event: "setup", listener: (settings: any) => void): Cluster;
+
+    export function prependOnceListener(event: string, listener: (...args: any[]) => void): Cluster;
+    export function prependOnceListener(event: "disconnect", listener: (worker: Worker) => void): Cluster;
+    export function prependOnceListener(event: "exit", listener: (worker: Worker, code: number, signal: string) => void): Cluster;
+    export function prependOnceListener(event: "fork", listener: (worker: Worker) => void): Cluster;
+    export function prependOnceListener(event: "listening", listener: (worker: Worker, address: Address) => void): Cluster;
+    export function prependOnceListener(event: "message", listener: (worker: Worker, message: any, handle: net.Socket | net.Server) => void): Cluster;  // the handle is a net.Socket or net.Server object, or undefined.
+    export function prependOnceListener(event: "online", listener: (worker: Worker) => void): Cluster;
+    export function prependOnceListener(event: "setup", listener: (settings: any) => void): Cluster;
+
+    export function eventNames(): string[];
 }
 
 declare module "zlib" {
-	import * as stream from "stream";
-
-	export interface ZlibOptions {
-		flush?: number; // default: zlib.constants.Z_NO_FLUSH
-		finishFlush?: number; // default: zlib.constants.Z_FINISH
-		chunkSize?: number; // default: 16*1024
-		windowBits?: number;
-		level?: number; // compression only
-		memLevel?: number; // compression only
-		strategy?: number; // compression only
-		dictionary?: any; // deflate/inflate only, empty dictionary by default
-	}
-
-	export interface Gzip extends stream.Transform { }
-	export interface Gunzip extends stream.Transform { }
-	export interface Deflate extends stream.Transform { }
-	export interface Inflate extends stream.Transform { }
-	export interface DeflateRaw extends stream.Transform { }
-	export interface InflateRaw extends stream.Transform { }
-	export interface Unzip extends stream.Transform { }
-
-	export function createGzip(options?: ZlibOptions): Gzip;
-	export function createGunzip(options?: ZlibOptions): Gunzip;
-	export function createDeflate(options?: ZlibOptions): Deflate;
-	export function createInflate(options?: ZlibOptions): Inflate;
-	export function createDeflateRaw(options?: ZlibOptions): DeflateRaw;
-	export function createInflateRaw(options?: ZlibOptions): InflateRaw;
-	export function createUnzip(options?: ZlibOptions): Unzip;
-
-	export function deflate(buf: Buffer | string, callback: (error: Error, result: Buffer) => void): void;
-	export function deflate(buf: Buffer | string, options: ZlibOptions, callback: (error: Error, result: Buffer) => void): void;
-	export function deflateSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
-	export function deflateRaw(buf: Buffer | string, callback: (error: Error, result: Buffer) => void): void;
-	export function deflateRaw(buf: Buffer | string, options: ZlibOptions, callback: (error: Error, result: Buffer) => void): void;
-	export function deflateRawSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
-	export function gzip(buf: Buffer | string, callback: (error: Error, result: Buffer) => void): void;
-	export function gzip(buf: Buffer | string, options: ZlibOptions, callback: (error: Error, result: Buffer) => void): void;
-	export function gzipSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
-	export function gunzip(buf: Buffer | string, callback: (error: Error, result: Buffer) => void): void;
-	export function gunzip(buf: Buffer | string, options: ZlibOptions, callback: (error: Error, result: Buffer) => void): void;
-	export function gunzipSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
-	export function inflate(buf: Buffer | string, callback: (error: Error, result: Buffer) => void): void;
-	export function inflate(buf: Buffer | string, options: ZlibOptions, callback: (error: Error, result: Buffer) => void): void;
-	export function inflateSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
-	export function inflateRaw(buf: Buffer | string, callback: (error: Error, result: Buffer) => void): void;
-	export function inflateRaw(buf: Buffer | string, options: ZlibOptions, callback: (error: Error, result: Buffer) => void): void;
-	export function inflateRawSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
-	export function unzip(buf: Buffer | string, callback: (error: Error, result: Buffer) => void): void;
-	export function unzip(buf: Buffer | string, options: ZlibOptions, callback: (error: Error, result: Buffer) => void): void;
-	export function unzipSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
-
-	export namespace constants {
-		// Allowed flush values.
-
-		export const Z_NO_FLUSH: number;
-		export const Z_PARTIAL_FLUSH: number;
-		export const Z_SYNC_FLUSH: number;
-		export const Z_FULL_FLUSH: number;
-		export const Z_FINISH: number;
-		export const Z_BLOCK: number;
-		export const Z_TREES: number;
-
-		// Return codes for the compression/decompression functions. Negative values are errors, positive values are used for special but normal events.
-
-		export const Z_OK: number;
-		export const Z_STREAM_END: number;
-		export const Z_NEED_DICT: number;
-		export const Z_ERRNO: number;
-		export const Z_STREAM_ERROR: number;
-		export const Z_DATA_ERROR: number;
-		export const Z_MEM_ERROR: number;
-		export const Z_BUF_ERROR: number;
-		export const Z_VERSION_ERROR: number;
-
-		// Compression levels.
-
-		export const Z_NO_COMPRESSION: number;
-		export const Z_BEST_SPEED: number;
-		export const Z_BEST_COMPRESSION: number;
-		export const Z_DEFAULT_COMPRESSION: number;
-
-		// Compression strategy.
-
-		export const Z_FILTERED: number;
-		export const Z_HUFFMAN_ONLY: number;
-		export const Z_RLE: number;
-		export const Z_FIXED: number;
-		export const Z_DEFAULT_STRATEGY: number;
-	}
-
-	// Constants
-	export var Z_NO_FLUSH: number;
-	export var Z_PARTIAL_FLUSH: number;
-	export var Z_SYNC_FLUSH: number;
-	export var Z_FULL_FLUSH: number;
-	export var Z_FINISH: number;
-	export var Z_BLOCK: number;
-	export var Z_TREES: number;
-	export var Z_OK: number;
-	export var Z_STREAM_END: number;
-	export var Z_NEED_DICT: number;
-	export var Z_ERRNO: number;
-	export var Z_STREAM_ERROR: number;
-	export var Z_DATA_ERROR: number;
-	export var Z_MEM_ERROR: number;
-	export var Z_BUF_ERROR: number;
-	export var Z_VERSION_ERROR: number;
-	export var Z_NO_COMPRESSION: number;
-	export var Z_BEST_SPEED: number;
-	export var Z_BEST_COMPRESSION: number;
-	export var Z_DEFAULT_COMPRESSION: number;
-	export var Z_FILTERED: number;
-	export var Z_HUFFMAN_ONLY: number;
-	export var Z_RLE: number;
-	export var Z_FIXED: number;
-	export var Z_DEFAULT_STRATEGY: number;
-	export var Z_BINARY: number;
-	export var Z_TEXT: number;
-	export var Z_ASCII: number;
-	export var Z_UNKNOWN: number;
-	export var Z_DEFLATED: number;
+    import * as stream from "stream";
+
+    export interface ZlibOptions {
+        flush?: number; // default: zlib.constants.Z_NO_FLUSH
+        finishFlush?: number; // default: zlib.constants.Z_FINISH
+        chunkSize?: number; // default: 16*1024
+        windowBits?: number;
+        level?: number; // compression only
+        memLevel?: number; // compression only
+        strategy?: number; // compression only
+        dictionary?: any; // deflate/inflate only, empty dictionary by default
+    }
+
+    export interface Zlib {
+        readonly bytesRead: number;
+        close(callback?: () => void): void;
+        flush(kind?: number | (() => void), callback?: () => void): void;
+    }
+
+    export interface ZlibParams {
+        params(level: number, strategy: number, callback: () => void): void;
+    }
+
+    export interface ZlibReset {
+        reset(): void;
+    }
+
+    export interface Gzip extends stream.Transform, Zlib { }
+    export interface Gunzip extends stream.Transform, Zlib { }
+    export interface Deflate extends stream.Transform, Zlib, ZlibReset, ZlibParams { }
+    export interface Inflate extends stream.Transform, Zlib, ZlibReset { }
+    export interface DeflateRaw extends stream.Transform, Zlib, ZlibReset, ZlibParams { }
+    export interface InflateRaw extends stream.Transform, Zlib, ZlibReset { }
+    export interface Unzip extends stream.Transform, Zlib { }
+
+    export function createGzip(options?: ZlibOptions): Gzip;
+    export function createGunzip(options?: ZlibOptions): Gunzip;
+    export function createDeflate(options?: ZlibOptions): Deflate;
+    export function createInflate(options?: ZlibOptions): Inflate;
+    export function createDeflateRaw(options?: ZlibOptions): DeflateRaw;
+    export function createInflateRaw(options?: ZlibOptions): InflateRaw;
+    export function createUnzip(options?: ZlibOptions): Unzip;
+
+    export function deflate(buf: Buffer | string, callback: (error: Error | null, result: Buffer) => void): void;
+    export function deflate(buf: Buffer | string, options: ZlibOptions, callback: (error: Error | null, result: Buffer) => void): void;
+    export function deflateSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
+    export function deflateRaw(buf: Buffer | string, callback: (error: Error | null, result: Buffer) => void): void;
+    export function deflateRaw(buf: Buffer | string, options: ZlibOptions, callback: (error: Error | null, result: Buffer) => void): void;
+    export function deflateRawSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
+    export function gzip(buf: Buffer | string, callback: (error: Error | null, result: Buffer) => void): void;
+    export function gzip(buf: Buffer | string, options: ZlibOptions, callback: (error: Error | null, result: Buffer) => void): void;
+    export function gzipSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
+    export function gunzip(buf: Buffer | string, callback: (error: Error | null, result: Buffer) => void): void;
+    export function gunzip(buf: Buffer | string, options: ZlibOptions, callback: (error: Error | null, result: Buffer) => void): void;
+    export function gunzipSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
+    export function inflate(buf: Buffer | string, callback: (error: Error | null, result: Buffer) => void): void;
+    export function inflate(buf: Buffer | string, options: ZlibOptions, callback: (error: Error | null, result: Buffer) => void): void;
+    export function inflateSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
+    export function inflateRaw(buf: Buffer | string, callback: (error: Error | null, result: Buffer) => void): void;
+    export function inflateRaw(buf: Buffer | string, options: ZlibOptions, callback: (error: Error | null, result: Buffer) => void): void;
+    export function inflateRawSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
+    export function unzip(buf: Buffer | string, callback: (error: Error | null, result: Buffer) => void): void;
+    export function unzip(buf: Buffer | string, options: ZlibOptions, callback: (error: Error | null, result: Buffer) => void): void;
+    export function unzipSync(buf: Buffer | string, options?: ZlibOptions): Buffer;
+
+    export namespace constants {
+        // Allowed flush values.
+
+        export const Z_NO_FLUSH: number;
+        export const Z_PARTIAL_FLUSH: number;
+        export const Z_SYNC_FLUSH: number;
+        export const Z_FULL_FLUSH: number;
+        export const Z_FINISH: number;
+        export const Z_BLOCK: number;
+        export const Z_TREES: number;
+
+        // Return codes for the compression/decompression functions. Negative values are errors, positive values are used for special but normal events.
+
+        export const Z_OK: number;
+        export const Z_STREAM_END: number;
+        export const Z_NEED_DICT: number;
+        export const Z_ERRNO: number;
+        export const Z_STREAM_ERROR: number;
+        export const Z_DATA_ERROR: number;
+        export const Z_MEM_ERROR: number;
+        export const Z_BUF_ERROR: number;
+        export const Z_VERSION_ERROR: number;
+
+        // Compression levels.
+
+        export const Z_NO_COMPRESSION: number;
+        export const Z_BEST_SPEED: number;
+        export const Z_BEST_COMPRESSION: number;
+        export const Z_DEFAULT_COMPRESSION: number;
+
+        // Compression strategy.
+
+        export const Z_FILTERED: number;
+        export const Z_HUFFMAN_ONLY: number;
+        export const Z_RLE: number;
+        export const Z_FIXED: number;
+        export const Z_DEFAULT_STRATEGY: number;
+    }
+
+    // Constants
+    export var Z_NO_FLUSH: number;
+    export var Z_PARTIAL_FLUSH: number;
+    export var Z_SYNC_FLUSH: number;
+    export var Z_FULL_FLUSH: number;
+    export var Z_FINISH: number;
+    export var Z_BLOCK: number;
+    export var Z_TREES: number;
+    export var Z_OK: number;
+    export var Z_STREAM_END: number;
+    export var Z_NEED_DICT: number;
+    export var Z_ERRNO: number;
+    export var Z_STREAM_ERROR: number;
+    export var Z_DATA_ERROR: number;
+    export var Z_MEM_ERROR: number;
+    export var Z_BUF_ERROR: number;
+    export var Z_VERSION_ERROR: number;
+    export var Z_NO_COMPRESSION: number;
+    export var Z_BEST_SPEED: number;
+    export var Z_BEST_COMPRESSION: number;
+    export var Z_DEFAULT_COMPRESSION: number;
+    export var Z_FILTERED: number;
+    export var Z_HUFFMAN_ONLY: number;
+    export var Z_RLE: number;
+    export var Z_FIXED: number;
+    export var Z_DEFAULT_STRATEGY: number;
+    export var Z_BINARY: number;
+    export var Z_TEXT: number;
+    export var Z_ASCII: number;
+    export var Z_UNKNOWN: number;
+    export var Z_DEFLATED: number;
 }
 
 declare module "os" {
-	export interface CpuInfo {
-		model: string;
-		speed: number;
-		times: {
-			user: number;
-			nice: number;
-			sys: number;
-			idle: number;
-			irq: number;
-		};
-	}
-
-	export interface NetworkInterfaceInfo {
-		address: string;
-		netmask: string;
-		family: string;
-		mac: string;
-		internal: boolean;
-	}
-
-	export function hostname(): string;
-	export function loadavg(): number[];
-	export function uptime(): number;
-	export function freemem(): number;
-	export function totalmem(): number;
-	export function cpus(): CpuInfo[];
-	export function type(): string;
-	export function release(): string;
-	export function networkInterfaces(): { [index: string]: NetworkInterfaceInfo[] };
-	export function homedir(): string;
-	export function userInfo(options?: { encoding: string }): { username: string, uid: number, gid: number, shell: any, homedir: string }
-	export var constants: {
-		UV_UDP_REUSEADDR: number,
-		signals: {
-			SIGHUP: number;
-			SIGINT: number;
-			SIGQUIT: number;
-			SIGILL: number;
-			SIGTRAP: number;
-			SIGABRT: number;
-			SIGIOT: number;
-			SIGBUS: number;
-			SIGFPE: number;
-			SIGKILL: number;
-			SIGUSR1: number;
-			SIGSEGV: number;
-			SIGUSR2: number;
-			SIGPIPE: number;
-			SIGALRM: number;
-			SIGTERM: number;
-			SIGCHLD: number;
-			SIGSTKFLT: number;
-			SIGCONT: number;
-			SIGSTOP: number;
-			SIGTSTP: number;
-			SIGTTIN: number;
-			SIGTTOU: number;
-			SIGURG: number;
-			SIGXCPU: number;
-			SIGXFSZ: number;
-			SIGVTALRM: number;
-			SIGPROF: number;
-			SIGWINCH: number;
-			SIGIO: number;
-			SIGPOLL: number;
-			SIGPWR: number;
-			SIGSYS: number;
-			SIGUNUSED: number;
-		},
-		errno: {
-			E2BIG: number;
-			EACCES: number;
-			EADDRINUSE: number;
-			EADDRNOTAVAIL: number;
-			EAFNOSUPPORT: number;
-			EAGAIN: number;
-			EALREADY: number;
-			EBADF: number;
-			EBADMSG: number;
-			EBUSY: number;
-			ECANCELED: number;
-			ECHILD: number;
-			ECONNABORTED: number;
-			ECONNREFUSED: number;
-			ECONNRESET: number;
-			EDEADLK: number;
-			EDESTADDRREQ: number;
-			EDOM: number;
-			EDQUOT: number;
-			EEXIST: number;
-			EFAULT: number;
-			EFBIG: number;
-			EHOSTUNREACH: number;
-			EIDRM: number;
-			EILSEQ: number;
-			EINPROGRESS: number;
-			EINTR: number;
-			EINVAL: number;
-			EIO: number;
-			EISCONN: number;
-			EISDIR: number;
-			ELOOP: number;
-			EMFILE: number;
-			EMLINK: number;
-			EMSGSIZE: number;
-			EMULTIHOP: number;
-			ENAMETOOLONG: number;
-			ENETDOWN: number;
-			ENETRESET: number;
-			ENETUNREACH: number;
-			ENFILE: number;
-			ENOBUFS: number;
-			ENODATA: number;
-			ENODEV: number;
-			ENOENT: number;
-			ENOEXEC: number;
-			ENOLCK: number;
-			ENOLINK: number;
-			ENOMEM: number;
-			ENOMSG: number;
-			ENOPROTOOPT: number;
-			ENOSPC: number;
-			ENOSR: number;
-			ENOSTR: number;
-			ENOSYS: number;
-			ENOTCONN: number;
-			ENOTDIR: number;
-			ENOTEMPTY: number;
-			ENOTSOCK: number;
-			ENOTSUP: number;
-			ENOTTY: number;
-			ENXIO: number;
-			EOPNOTSUPP: number;
-			EOVERFLOW: number;
-			EPERM: number;
-			EPIPE: number;
-			EPROTO: number;
-			EPROTONOSUPPORT: number;
-			EPROTOTYPE: number;
-			ERANGE: number;
-			EROFS: number;
-			ESPIPE: number;
-			ESRCH: number;
-			ESTALE: number;
-			ETIME: number;
-			ETIMEDOUT: number;
-			ETXTBSY: number;
-			EWOULDBLOCK: number;
-			EXDEV: number;
-		},
-	};
-	export function arch(): string;
-	export function platform(): NodeJS.Platform;
-	export function tmpdir(): string;
-	export var EOL: string;
-	export function endianness(): "BE" | "LE";
+    export interface CpuInfo {
+        model: string;
+        speed: number;
+        times: {
+            user: number;
+            nice: number;
+            sys: number;
+            idle: number;
+            irq: number;
+        };
+    }
+
+    export interface NetworkInterfaceBase {
+        address: string;
+        netmask: string;
+        mac: string;
+        internal: boolean;
+    }
+
+    export interface NetworkInterfaceInfoIPv4 extends NetworkInterfaceBase {
+        family: "IPv4";
+    }
+
+    export interface NetworkInterfaceInfoIPv6 extends NetworkInterfaceBase {
+        family: "IPv6";
+        scopeid: number;
+    }
+
+    export type NetworkInterfaceInfo = NetworkInterfaceInfoIPv4 | NetworkInterfaceInfoIPv6;
+
+    export function hostname(): string;
+    export function loadavg(): number[];
+    export function uptime(): number;
+    export function freemem(): number;
+    export function totalmem(): number;
+    export function cpus(): CpuInfo[];
+    export function type(): string;
+    export function release(): string;
+    export function networkInterfaces(): { [index: string]: NetworkInterfaceInfo[] };
+    export function homedir(): string;
+    export function userInfo(options?: { encoding: string }): { username: string, uid: number, gid: number, shell: any, homedir: string };
+    export var constants: {
+        UV_UDP_REUSEADDR: number,
+        signals: {
+            SIGHUP: number;
+            SIGINT: number;
+            SIGQUIT: number;
+            SIGILL: number;
+            SIGTRAP: number;
+            SIGABRT: number;
+            SIGIOT: number;
+            SIGBUS: number;
+            SIGFPE: number;
+            SIGKILL: number;
+            SIGUSR1: number;
+            SIGSEGV: number;
+            SIGUSR2: number;
+            SIGPIPE: number;
+            SIGALRM: number;
+            SIGTERM: number;
+            SIGCHLD: number;
+            SIGSTKFLT: number;
+            SIGCONT: number;
+            SIGSTOP: number;
+            SIGTSTP: number;
+            SIGTTIN: number;
+            SIGTTOU: number;
+            SIGURG: number;
+            SIGXCPU: number;
+            SIGXFSZ: number;
+            SIGVTALRM: number;
+            SIGPROF: number;
+            SIGWINCH: number;
+            SIGIO: number;
+            SIGPOLL: number;
+            SIGPWR: number;
+            SIGSYS: number;
+            SIGUNUSED: number;
+        },
+        errno: {
+            E2BIG: number;
+            EACCES: number;
+            EADDRINUSE: number;
+            EADDRNOTAVAIL: number;
+            EAFNOSUPPORT: number;
+            EAGAIN: number;
+            EALREADY: number;
+            EBADF: number;
+            EBADMSG: number;
+            EBUSY: number;
+            ECANCELED: number;
+            ECHILD: number;
+            ECONNABORTED: number;
+            ECONNREFUSED: number;
+            ECONNRESET: number;
+            EDEADLK: number;
+            EDESTADDRREQ: number;
+            EDOM: number;
+            EDQUOT: number;
+            EEXIST: number;
+            EFAULT: number;
+            EFBIG: number;
+            EHOSTUNREACH: number;
+            EIDRM: number;
+            EILSEQ: number;
+            EINPROGRESS: number;
+            EINTR: number;
+            EINVAL: number;
+            EIO: number;
+            EISCONN: number;
+            EISDIR: number;
+            ELOOP: number;
+            EMFILE: number;
+            EMLINK: number;
+            EMSGSIZE: number;
+            EMULTIHOP: number;
+            ENAMETOOLONG: number;
+            ENETDOWN: number;
+            ENETRESET: number;
+            ENETUNREACH: number;
+            ENFILE: number;
+            ENOBUFS: number;
+            ENODATA: number;
+            ENODEV: number;
+            ENOENT: number;
+            ENOEXEC: number;
+            ENOLCK: number;
+            ENOLINK: number;
+            ENOMEM: number;
+            ENOMSG: number;
+            ENOPROTOOPT: number;
+            ENOSPC: number;
+            ENOSR: number;
+            ENOSTR: number;
+            ENOSYS: number;
+            ENOTCONN: number;
+            ENOTDIR: number;
+            ENOTEMPTY: number;
+            ENOTSOCK: number;
+            ENOTSUP: number;
+            ENOTTY: number;
+            ENXIO: number;
+            EOPNOTSUPP: number;
+            EOVERFLOW: number;
+            EPERM: number;
+            EPIPE: number;
+            EPROTO: number;
+            EPROTONOSUPPORT: number;
+            EPROTOTYPE: number;
+            ERANGE: number;
+            EROFS: number;
+            ESPIPE: number;
+            ESRCH: number;
+            ESTALE: number;
+            ETIME: number;
+            ETIMEDOUT: number;
+            ETXTBSY: number;
+            EWOULDBLOCK: number;
+            EXDEV: number;
+        },
+    };
+    export function arch(): string;
+    export function platform(): NodeJS.Platform;
+    export function tmpdir(): string;
+    export const EOL: string;
+    export function endianness(): "BE" | "LE";
 }
 
 declare module "https" {
-	import * as tls from "tls";
-	import * as events from "events";
-	import * as http from "http";
-
-	export interface ServerOptions {
-		pfx?: any;
-		key?: any;
-		passphrase?: string;
-		cert?: any;
-		ca?: any;
-		crl?: any;
-		ciphers?: string;
-		honorCipherOrder?: boolean;
-		requestCert?: boolean;
-		rejectUnauthorized?: boolean;
-		NPNProtocols?: any;
-		SNICallback?: (servername: string, cb: (err: Error, ctx: tls.SecureContext) => any) => any;
-	}
-
-	export interface RequestOptions extends http.RequestOptions {
-		pfx?: any;
-		key?: any;
-		passphrase?: string;
-		cert?: any;
-		ca?: any;
-		ciphers?: string;
-		rejectUnauthorized?: boolean;
-		secureProtocol?: string;
-	}
-
-	export interface Agent extends http.Agent { }
-
-	export interface AgentOptions extends http.AgentOptions {
-		pfx?: any;
-		key?: any;
-		passphrase?: string;
-		cert?: any;
-		ca?: any;
-		ciphers?: string;
-		rejectUnauthorized?: boolean;
-		secureProtocol?: string;
-		maxCachedSessions?: number;
-	}
-
-	export var Agent: {
-		new(options?: AgentOptions): Agent;
-	};
-	export interface Server extends tls.Server { }
-	export function createServer(options: ServerOptions, requestListener?: Function): Server;
-	export function request(options: RequestOptions, callback?: (res: http.IncomingMessage) => void): http.ClientRequest;
-	export function get(options: RequestOptions, callback?: (res: http.IncomingMessage) => void): http.ClientRequest;
-	export var globalAgent: Agent;
+    import * as tls from "tls";
+    import * as events from "events";
+    import * as http from "http";
+    import { URL } from "url";
+
+    export type ServerOptions = tls.SecureContextOptions & tls.TlsOptions;
+
+    // see https://nodejs.org/docs/latest-v8.x/api/https.html#https_https_request_options_callback
+    type extendedRequestKeys = "pfx" |
+        "key" |
+        "passphrase" |
+        "cert" |
+        "ca" |
+        "ciphers" |
+        "rejectUnauthorized" |
+        "secureProtocol" |
+        "servername";
+
+    export type RequestOptions = http.RequestOptions & Pick<tls.ConnectionOptions, extendedRequestKeys>;
+
+    export interface AgentOptions extends http.AgentOptions, tls.ConnectionOptions {
+        rejectUnauthorized?: boolean;
+        maxCachedSessions?: number;
+    }
+
+    export class Agent extends http.Agent {
+        constructor(options?: AgentOptions);
+    }
+
+    export class Server extends tls.Server {
+        setTimeout(callback: () => void): this;
+        setTimeout(msecs?: number, callback?: () => void): this;
+        timeout: number;
+        keepAliveTimeout: number;
+    }
+
+    export function createServer(options: ServerOptions, requestListener?: (req: http.IncomingMessage, res: http.ServerResponse) => void): Server;
+    export function request(options: RequestOptions | string | URL, callback?: (res: http.IncomingMessage) => void): http.ClientRequest;
+    export function get(options: RequestOptions | string | URL, callback?: (res: http.IncomingMessage) => void): http.ClientRequest;
+    export var globalAgent: Agent;
 }
 
 declare module "punycode" {
-	export function decode(string: string): string;
-	export function encode(string: string): string;
-	export function toUnicode(domain: string): string;
-	export function toASCII(domain: string): string;
-	export var ucs2: ucs2;
-	interface ucs2 {
-		decode(string: string): number[];
-		encode(codePoints: number[]): string;
-	}
-	export var version: any;
+    export function decode(string: string): string;
+    export function encode(string: string): string;
+    export function toUnicode(domain: string): string;
+    export function toASCII(domain: string): string;
+    export var ucs2: ucs2;
+    interface ucs2 {
+        decode(string: string): number[];
+        encode(codePoints: number[]): string;
+    }
+    export var version: any;
 }
 
 declare module "repl" {
-	import * as stream from "stream";
-	import * as readline from "readline";
-
-	export interface ReplOptions {
-		prompt?: string;
-		input?: NodeJS.ReadableStream;
-		output?: NodeJS.WritableStream;
-		terminal?: boolean;
-		eval?: Function;
-		useColors?: boolean;
-		useGlobal?: boolean;
-		ignoreUndefined?: boolean;
-		writer?: Function;
-		completer?: Function;
-		replMode?: any;
-		breakEvalOnSigint?: any;
-	}
-
-	export interface REPLServer extends readline.ReadLine {
-		context: any;
-		defineCommand(keyword: string, cmd: Function | { help: string, action: Function }): void;
-		displayPrompt(preserveCursor?: boolean): void;
+    import * as stream from "stream";
+    import * as readline from "readline";
+
+    export interface ReplOptions {
+        prompt?: string;
+        input?: NodeJS.ReadableStream;
+        output?: NodeJS.WritableStream;
+        terminal?: boolean;
+        eval?: Function;
+        useColors?: boolean;
+        useGlobal?: boolean;
+        ignoreUndefined?: boolean;
+        writer?: Function;
+        completer?: Function;
+        replMode?: any;
+        breakEvalOnSigint?: any;
+    }
+
+    export interface REPLServer extends readline.ReadLine {
+        context: any;
+        inputStream: NodeJS.ReadableStream;
+        outputStream: NodeJS.WritableStream;
+
+        defineCommand(keyword: string, cmd: Function | { help: string, action: Function }): void;
+        displayPrompt(preserveCursor?: boolean): void;
 
         /**
          * events.EventEmitter
          * 1. exit
          * 2. reset
-         **/
+         */
 
-		addListener(event: string, listener: Function): this;
-		addListener(event: "exit", listener: () => void): this;
-		addListener(event: "reset", listener: Function): this;
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "exit", listener: () => void): this;
+        addListener(event: "reset", listener: (...args: any[]) => void): this;
 
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "exit"): boolean;
-		emit(event: "reset", context: any): boolean;
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "exit"): boolean;
+        emit(event: "reset", context: any): boolean;
 
-		on(event: string, listener: Function): this;
-		on(event: "exit", listener: () => void): this;
-		on(event: "reset", listener: Function): this;
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "exit", listener: () => void): this;
+        on(event: "reset", listener: (...args: any[]) => void): this;
 
-		once(event: string, listener: Function): this;
-		once(event: "exit", listener: () => void): this;
-		once(event: "reset", listener: Function): this;
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "exit", listener: () => void): this;
+        once(event: "reset", listener: (...args: any[]) => void): this;
 
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "exit", listener: () => void): this;
-		prependListener(event: "reset", listener: Function): this;
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "exit", listener: () => void): this;
+        prependListener(event: "reset", listener: (...args: any[]) => void): this;
 
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "exit", listener: () => void): this;
-		prependOnceListener(event: "reset", listener: Function): this;
-	}
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "exit", listener: () => void): this;
+        prependOnceListener(event: "reset", listener: (...args: any[]) => void): this;
+    }
 
-	export function start(options?: string | ReplOptions): REPLServer;
+    export function start(options?: string | ReplOptions): REPLServer;
+
+    export class Recoverable extends SyntaxError {
+        err: Error;
+
+        constructor(err: Error);
+    }
 }
 
 declare module "readline" {
-	import * as events from "events";
-	import * as stream from "stream";
-
-	export interface Key {
-		sequence?: string;
-		name?: string;
-		ctrl?: boolean;
-		meta?: boolean;
-		shift?: boolean;
-	}
-
-	export interface ReadLine extends events.EventEmitter {
-		setPrompt(prompt: string): void;
-		prompt(preserveCursor?: boolean): void;
-		question(query: string, callback: (answer: string) => void): void;
-		pause(): ReadLine;
-		resume(): ReadLine;
-		close(): void;
-		write(data: string | Buffer, key?: Key): void;
+    import * as events from "events";
+    import * as stream from "stream";
+
+    export interface Key {
+        sequence?: string;
+        name?: string;
+        ctrl?: boolean;
+        meta?: boolean;
+        shift?: boolean;
+    }
+
+    export interface ReadLine extends events.EventEmitter {
+        setPrompt(prompt: string): void;
+        prompt(preserveCursor?: boolean): void;
+        question(query: string, callback: (answer: string) => void): void;
+        pause(): ReadLine;
+        resume(): ReadLine;
+        close(): void;
+        write(data: string | Buffer, key?: Key): void;
 
         /**
          * events.EventEmitter
@@ -1527,138 +1884,138 @@ declare module "readline" {
          * 5. SIGCONT
          * 6. SIGINT
          * 7. SIGTSTP
-         **/
-
-		addListener(event: string, listener: Function): this;
-		addListener(event: "close", listener: () => void): this;
-		addListener(event: "line", listener: (input: any) => void): this;
-		addListener(event: "pause", listener: () => void): this;
-		addListener(event: "resume", listener: () => void): this;
-		addListener(event: "SIGCONT", listener: () => void): this;
-		addListener(event: "SIGINT", listener: () => void): this;
-		addListener(event: "SIGTSTP", listener: () => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "close"): boolean;
-		emit(event: "line", input: any): boolean;
-		emit(event: "pause"): boolean;
-		emit(event: "resume"): boolean;
-		emit(event: "SIGCONT"): boolean;
-		emit(event: "SIGINT"): boolean;
-		emit(event: "SIGTSTP"): boolean;
-
-		on(event: string, listener: Function): this;
-		on(event: "close", listener: () => void): this;
-		on(event: "line", listener: (input: any) => void): this;
-		on(event: "pause", listener: () => void): this;
-		on(event: "resume", listener: () => void): this;
-		on(event: "SIGCONT", listener: () => void): this;
-		on(event: "SIGINT", listener: () => void): this;
-		on(event: "SIGTSTP", listener: () => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "close", listener: () => void): this;
-		once(event: "line", listener: (input: any) => void): this;
-		once(event: "pause", listener: () => void): this;
-		once(event: "resume", listener: () => void): this;
-		once(event: "SIGCONT", listener: () => void): this;
-		once(event: "SIGINT", listener: () => void): this;
-		once(event: "SIGTSTP", listener: () => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "close", listener: () => void): this;
-		prependListener(event: "line", listener: (input: any) => void): this;
-		prependListener(event: "pause", listener: () => void): this;
-		prependListener(event: "resume", listener: () => void): this;
-		prependListener(event: "SIGCONT", listener: () => void): this;
-		prependListener(event: "SIGINT", listener: () => void): this;
-		prependListener(event: "SIGTSTP", listener: () => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "close", listener: () => void): this;
-		prependOnceListener(event: "line", listener: (input: any) => void): this;
-		prependOnceListener(event: "pause", listener: () => void): this;
-		prependOnceListener(event: "resume", listener: () => void): this;
-		prependOnceListener(event: "SIGCONT", listener: () => void): this;
-		prependOnceListener(event: "SIGINT", listener: () => void): this;
-		prependOnceListener(event: "SIGTSTP", listener: () => void): this;
-	}
-
-	type Completer = (line: string) => CompleterResult;
-	type AsyncCompleter = (line: string, callback: (err: any, result: CompleterResult) => void) => any;
-
-	export type CompleterResult = [string[], string];
-
-	export interface ReadLineOptions {
-		input: NodeJS.ReadableStream;
-		output?: NodeJS.WritableStream;
-		completer?: Completer | AsyncCompleter;
-		terminal?: boolean;
-		historySize?: number;
-		prompt?: string;
-		crlfDelay?: number;
-		removeHistoryDuplicates?: boolean;
-	}
-
-	export function createInterface(input: NodeJS.ReadableStream, output?: NodeJS.WritableStream, completer?: Completer | AsyncCompleter, terminal?: boolean): ReadLine;
-	export function createInterface(options: ReadLineOptions): ReadLine;
-
-	export function cursorTo(stream: NodeJS.WritableStream, x: number, y: number): void;
-	export function moveCursor(stream: NodeJS.WritableStream, dx: number | string, dy: number | string): void;
-	export function clearLine(stream: NodeJS.WritableStream, dir: number): void;
-	export function clearScreenDown(stream: NodeJS.WritableStream): void;
+         */
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "close", listener: () => void): this;
+        addListener(event: "line", listener: (input: any) => void): this;
+        addListener(event: "pause", listener: () => void): this;
+        addListener(event: "resume", listener: () => void): this;
+        addListener(event: "SIGCONT", listener: () => void): this;
+        addListener(event: "SIGINT", listener: () => void): this;
+        addListener(event: "SIGTSTP", listener: () => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "close"): boolean;
+        emit(event: "line", input: any): boolean;
+        emit(event: "pause"): boolean;
+        emit(event: "resume"): boolean;
+        emit(event: "SIGCONT"): boolean;
+        emit(event: "SIGINT"): boolean;
+        emit(event: "SIGTSTP"): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "close", listener: () => void): this;
+        on(event: "line", listener: (input: any) => void): this;
+        on(event: "pause", listener: () => void): this;
+        on(event: "resume", listener: () => void): this;
+        on(event: "SIGCONT", listener: () => void): this;
+        on(event: "SIGINT", listener: () => void): this;
+        on(event: "SIGTSTP", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "close", listener: () => void): this;
+        once(event: "line", listener: (input: any) => void): this;
+        once(event: "pause", listener: () => void): this;
+        once(event: "resume", listener: () => void): this;
+        once(event: "SIGCONT", listener: () => void): this;
+        once(event: "SIGINT", listener: () => void): this;
+        once(event: "SIGTSTP", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "close", listener: () => void): this;
+        prependListener(event: "line", listener: (input: any) => void): this;
+        prependListener(event: "pause", listener: () => void): this;
+        prependListener(event: "resume", listener: () => void): this;
+        prependListener(event: "SIGCONT", listener: () => void): this;
+        prependListener(event: "SIGINT", listener: () => void): this;
+        prependListener(event: "SIGTSTP", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "close", listener: () => void): this;
+        prependOnceListener(event: "line", listener: (input: any) => void): this;
+        prependOnceListener(event: "pause", listener: () => void): this;
+        prependOnceListener(event: "resume", listener: () => void): this;
+        prependOnceListener(event: "SIGCONT", listener: () => void): this;
+        prependOnceListener(event: "SIGINT", listener: () => void): this;
+        prependOnceListener(event: "SIGTSTP", listener: () => void): this;
+    }
+
+    type Completer = (line: string) => CompleterResult;
+    type AsyncCompleter = (line: string, callback: (err: any, result: CompleterResult) => void) => any;
+
+    export type CompleterResult = [string[], string];
+
+    export interface ReadLineOptions {
+        input: NodeJS.ReadableStream;
+        output?: NodeJS.WritableStream;
+        completer?: Completer | AsyncCompleter;
+        terminal?: boolean;
+        historySize?: number;
+    }
+
+    export function createInterface(input: NodeJS.ReadableStream, output?: NodeJS.WritableStream, completer?: Completer | AsyncCompleter, terminal?: boolean): ReadLine;
+    export function createInterface(options: ReadLineOptions): ReadLine;
+
+    export function cursorTo(stream: NodeJS.WritableStream, x: number, y?: number): void;
+    export function emitKeypressEvents(stream: NodeJS.ReadableStream, interface?: ReadLine): void;
+    export function moveCursor(stream: NodeJS.WritableStream, dx: number | string, dy: number | string): void;
+    export function clearLine(stream: NodeJS.WritableStream, dir: number): void;
+    export function clearScreenDown(stream: NodeJS.WritableStream): void;
 }
 
 declare module "vm" {
-	export interface Context { }
-	export interface ScriptOptions {
-		filename?: string;
-		lineOffset?: number;
-		columnOffset?: number;
-		displayErrors?: boolean;
-		timeout?: number;
-		cachedData?: Buffer;
-		produceCachedData?: boolean;
-	}
-	export interface RunningScriptOptions {
-		filename?: string;
-		lineOffset?: number;
-		columnOffset?: number;
-		displayErrors?: boolean;
-		timeout?: number;
-	}
-	export class Script {
-		constructor(code: string, options?: ScriptOptions);
-		runInContext(contextifiedSandbox: Context, options?: RunningScriptOptions): any;
-		runInNewContext(sandbox?: Context, options?: RunningScriptOptions): any;
-		runInThisContext(options?: RunningScriptOptions): any;
-	}
-	export function createContext(sandbox?: Context): Context;
-	export function isContext(sandbox: Context): boolean;
-	export function runInContext(code: string, contextifiedSandbox: Context, options?: RunningScriptOptions): any;
-	export function runInDebugContext(code: string): any;
-	export function runInNewContext(code: string, sandbox?: Context, options?: RunningScriptOptions): any;
-	export function runInThisContext(code: string, options?: RunningScriptOptions): any;
+    export interface Context { }
+    export interface ScriptOptions {
+        filename?: string;
+        lineOffset?: number;
+        columnOffset?: number;
+        displayErrors?: boolean;
+        timeout?: number;
+        cachedData?: Buffer;
+        produceCachedData?: boolean;
+    }
+    export interface RunningScriptOptions {
+        filename?: string;
+        lineOffset?: number;
+        columnOffset?: number;
+        displayErrors?: boolean;
+        timeout?: number;
+    }
+    export class Script {
+        constructor(code: string, options?: ScriptOptions);
+        runInContext(contextifiedSandbox: Context, options?: RunningScriptOptions): any;
+        runInNewContext(sandbox?: Context, options?: RunningScriptOptions): any;
+        runInThisContext(options?: RunningScriptOptions): any;
+    }
+    export function createContext(sandbox?: Context): Context;
+    export function isContext(sandbox: Context): boolean;
+    export function runInContext(code: string, contextifiedSandbox: Context, options?: RunningScriptOptions): any;
+    export function runInDebugContext(code: string): any;
+    export function runInNewContext(code: string, sandbox?: Context, options?: RunningScriptOptions): any;
+    export function runInThisContext(code: string, options?: RunningScriptOptions): any;
 }
 
 declare module "child_process" {
-	import * as events from "events";
-	import * as stream from "stream";
-	import * as net from "net";
-
-	export interface ChildProcess extends events.EventEmitter {
-		stdin: stream.Writable;
-		stdout: stream.Readable;
-		stderr: stream.Readable;
-		stdio: [stream.Writable, stream.Readable, stream.Readable];
-		killed: boolean;
-		pid: number;
-		kill(signal?: string): void;
-		send(message: any, sendHandle?: any): boolean;
-		connected: boolean;
-		disconnect(): void;
-		unref(): void;
-		ref(): void;
+    import * as events from "events";
+    import * as stream from "stream";
+    import * as net from "net";
+
+    export interface ChildProcess extends events.EventEmitter {
+        stdin: stream.Writable;
+        stdout: stream.Readable;
+        stderr: stream.Readable;
+        stdio: [stream.Writable, stream.Readable, stream.Readable];
+        killed: boolean;
+        pid: number;
+        kill(signal?: string): void;
+        send(message: any, callback?: (error: Error) => void): boolean;
+        send(message: any, sendHandle?: net.Socket | net.Server, callback?: (error: Error) => void): boolean;
+        send(message: any, sendHandle?: net.Socket | net.Server, options?: MessageOptions, callback?: (error: Error) => void): boolean;
+        connected: boolean;
+        disconnect(): void;
+        unref(): void;
+        ref(): void;
 
         /**
          * events.EventEmitter
@@ -1667,464 +2024,610 @@ declare module "child_process" {
          * 3. error
          * 4. exit
          * 5. message
-         **/
-
-		addListener(event: string, listener: Function): this;
-		addListener(event: "close", listener: (code: number, signal: string) => void): this;
-		addListener(event: "disconnect", listener: () => void): this;
-		addListener(event: "error", listener: (err: Error) => void): this;
-		addListener(event: "exit", listener: (code: number, signal: string) => void): this;
-		addListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "close", code: number, signal: string): boolean;
-		emit(event: "disconnect"): boolean;
-		emit(event: "error", err: Error): boolean;
-		emit(event: "exit", code: number, signal: string): boolean;
-		emit(event: "message", message: any, sendHandle: net.Socket | net.Server): boolean;
-
-		on(event: string, listener: Function): this;
-		on(event: "close", listener: (code: number, signal: string) => void): this;
-		on(event: "disconnect", listener: () => void): this;
-		on(event: "error", listener: (err: Error) => void): this;
-		on(event: "exit", listener: (code: number, signal: string) => void): this;
-		on(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "close", listener: (code: number, signal: string) => void): this;
-		once(event: "disconnect", listener: () => void): this;
-		once(event: "error", listener: (err: Error) => void): this;
-		once(event: "exit", listener: (code: number, signal: string) => void): this;
-		once(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "close", listener: (code: number, signal: string) => void): this;
-		prependListener(event: "disconnect", listener: () => void): this;
-		prependListener(event: "error", listener: (err: Error) => void): this;
-		prependListener(event: "exit", listener: (code: number, signal: string) => void): this;
-		prependListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "close", listener: (code: number, signal: string) => void): this;
-		prependOnceListener(event: "disconnect", listener: () => void): this;
-		prependOnceListener(event: "error", listener: (err: Error) => void): this;
-		prependOnceListener(event: "exit", listener: (code: number, signal: string) => void): this;
-		prependOnceListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
-	}
-
-	export interface SpawnOptions {
-		cwd?: string;
-		env?: any;
-		stdio?: any;
-		detached?: boolean;
-		uid?: number;
-		gid?: number;
-		shell?: boolean | string;
-		windowsVerbatimArguments?: boolean;
-	}
-	export function spawn(command: string, args?: string[], options?: SpawnOptions): ChildProcess;
-
-	export interface ExecOptions {
-		cwd?: string;
-		env?: any;
-		shell?: string;
-		timeout?: number;
-		maxBuffer?: number;
-		killSignal?: string;
-		uid?: number;
-		gid?: number;
-	}
-	export interface ExecOptionsWithStringEncoding extends ExecOptions {
-		encoding: BufferEncoding;
-	}
-	export interface ExecOptionsWithBufferEncoding extends ExecOptions {
-		encoding: string; // specify `null`.
-	}
-	export function exec(command: string, callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-	export function exec(command: string, options: ExecOptionsWithStringEncoding, callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-	// usage. child_process.exec("tsc", {encoding: null as string}, (err, stdout, stderr) => {});
-	export function exec(command: string, options: ExecOptionsWithBufferEncoding, callback?: (error: Error, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
-	export function exec(command: string, options: ExecOptions, callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-
-	export interface ExecFileOptions {
-		cwd?: string;
-		env?: any;
-		timeout?: number;
-		maxBuffer?: number;
-		killSignal?: string;
-		uid?: number;
-		gid?: number;
-	}
-	export interface ExecFileOptionsWithStringEncoding extends ExecFileOptions {
-		encoding: BufferEncoding;
-	}
-	export interface ExecFileOptionsWithBufferEncoding extends ExecFileOptions {
-		encoding: string; // specify `null`.
-	}
-	export function execFile(file: string, callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-	export function execFile(file: string, options?: ExecFileOptionsWithStringEncoding, callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-	// usage. child_process.execFile("file.sh", {encoding: null as string}, (err, stdout, stderr) => {});
-	export function execFile(file: string, options?: ExecFileOptionsWithBufferEncoding, callback?: (error: Error, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
-	export function execFile(file: string, options?: ExecFileOptions, callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-	export function execFile(file: string, args?: string[], callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-	export function execFile(file: string, args?: string[], options?: ExecFileOptionsWithStringEncoding, callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-	// usage. child_process.execFile("file.sh", ["foo"], {encoding: null as string}, (err, stdout, stderr) => {});
-	export function execFile(file: string, args?: string[], options?: ExecFileOptionsWithBufferEncoding, callback?: (error: Error, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
-	export function execFile(file: string, args?: string[], options?: ExecFileOptions, callback?: (error: Error, stdout: string, stderr: string) => void): ChildProcess;
-
-	export interface ForkOptions {
-		cwd?: string;
-		env?: any;
-		execPath?: string;
-		execArgv?: string[];
-		silent?: boolean;
-		stdio?: any[];
-		uid?: number;
-		gid?: number;
-	}
-	export function fork(modulePath: string, args?: string[], options?: ForkOptions): ChildProcess;
-
-	export interface SpawnSyncOptions {
-		cwd?: string;
-		input?: string | Buffer;
-		stdio?: any;
-		env?: any;
-		uid?: number;
-		gid?: number;
-		timeout?: number;
-		killSignal?: string;
-		maxBuffer?: number;
-		encoding?: string;
-		shell?: boolean | string;
-	}
-	export interface SpawnSyncOptionsWithStringEncoding extends SpawnSyncOptions {
-		encoding: BufferEncoding;
-	}
-	export interface SpawnSyncOptionsWithBufferEncoding extends SpawnSyncOptions {
-		encoding: string; // specify `null`.
-	}
-	export interface SpawnSyncReturns<T> {
-		pid: number;
-		output: string[];
-		stdout: T;
-		stderr: T;
-		status: number;
-		signal: string;
-		error: Error;
-	}
-	export function spawnSync(command: string): SpawnSyncReturns<Buffer>;
-	export function spawnSync(command: string, options?: SpawnSyncOptionsWithStringEncoding): SpawnSyncReturns<string>;
-	export function spawnSync(command: string, options?: SpawnSyncOptionsWithBufferEncoding): SpawnSyncReturns<Buffer>;
-	export function spawnSync(command: string, options?: SpawnSyncOptions): SpawnSyncReturns<Buffer>;
-	export function spawnSync(command: string, args?: string[], options?: SpawnSyncOptionsWithStringEncoding): SpawnSyncReturns<string>;
-	export function spawnSync(command: string, args?: string[], options?: SpawnSyncOptionsWithBufferEncoding): SpawnSyncReturns<Buffer>;
-	export function spawnSync(command: string, args?: string[], options?: SpawnSyncOptions): SpawnSyncReturns<Buffer>;
-
-	export interface ExecSyncOptions {
-		cwd?: string;
-		input?: string | Buffer;
-		stdio?: any;
-		env?: any;
-		shell?: string;
-		uid?: number;
-		gid?: number;
-		timeout?: number;
-		killSignal?: string;
-		maxBuffer?: number;
-		encoding?: string;
-	}
-	export interface ExecSyncOptionsWithStringEncoding extends ExecSyncOptions {
-		encoding: BufferEncoding;
-	}
-	export interface ExecSyncOptionsWithBufferEncoding extends ExecSyncOptions {
-		encoding: string; // specify `null`.
-	}
-	export function execSync(command: string): Buffer;
-	export function execSync(command: string, options?: ExecSyncOptionsWithStringEncoding): string;
-	export function execSync(command: string, options?: ExecSyncOptionsWithBufferEncoding): Buffer;
-	export function execSync(command: string, options?: ExecSyncOptions): Buffer;
-
-	export interface ExecFileSyncOptions {
-		cwd?: string;
-		input?: string | Buffer;
-		stdio?: any;
-		env?: any;
-		uid?: number;
-		gid?: number;
-		timeout?: number;
-		killSignal?: string;
-		maxBuffer?: number;
-		encoding?: string;
-	}
-	export interface ExecFileSyncOptionsWithStringEncoding extends ExecFileSyncOptions {
-		encoding: BufferEncoding;
-	}
-	export interface ExecFileSyncOptionsWithBufferEncoding extends ExecFileSyncOptions {
-		encoding: string; // specify `null`.
-	}
-	export function execFileSync(command: string): Buffer;
-	export function execFileSync(command: string, options?: ExecFileSyncOptionsWithStringEncoding): string;
-	export function execFileSync(command: string, options?: ExecFileSyncOptionsWithBufferEncoding): Buffer;
-	export function execFileSync(command: string, options?: ExecFileSyncOptions): Buffer;
-	export function execFileSync(command: string, args?: string[], options?: ExecFileSyncOptionsWithStringEncoding): string;
-	export function execFileSync(command: string, args?: string[], options?: ExecFileSyncOptionsWithBufferEncoding): Buffer;
-	export function execFileSync(command: string, args?: string[], options?: ExecFileSyncOptions): Buffer;
+         */
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "close", listener: (code: number, signal: string) => void): this;
+        addListener(event: "disconnect", listener: () => void): this;
+        addListener(event: "error", listener: (err: Error) => void): this;
+        addListener(event: "exit", listener: (code: number, signal: string) => void): this;
+        addListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "close", code: number, signal: string): boolean;
+        emit(event: "disconnect"): boolean;
+        emit(event: "error", err: Error): boolean;
+        emit(event: "exit", code: number, signal: string): boolean;
+        emit(event: "message", message: any, sendHandle: net.Socket | net.Server): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "close", listener: (code: number, signal: string) => void): this;
+        on(event: "disconnect", listener: () => void): this;
+        on(event: "error", listener: (err: Error) => void): this;
+        on(event: "exit", listener: (code: number, signal: string) => void): this;
+        on(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "close", listener: (code: number, signal: string) => void): this;
+        once(event: "disconnect", listener: () => void): this;
+        once(event: "error", listener: (err: Error) => void): this;
+        once(event: "exit", listener: (code: number, signal: string) => void): this;
+        once(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "close", listener: (code: number, signal: string) => void): this;
+        prependListener(event: "disconnect", listener: () => void): this;
+        prependListener(event: "error", listener: (err: Error) => void): this;
+        prependListener(event: "exit", listener: (code: number, signal: string) => void): this;
+        prependListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "close", listener: (code: number, signal: string) => void): this;
+        prependOnceListener(event: "disconnect", listener: () => void): this;
+        prependOnceListener(event: "error", listener: (err: Error) => void): this;
+        prependOnceListener(event: "exit", listener: (code: number, signal: string) => void): this;
+        prependOnceListener(event: "message", listener: (message: any, sendHandle: net.Socket | net.Server) => void): this;
+    }
+
+    export interface MessageOptions {
+        keepOpen?: boolean;
+    }
+
+    export interface SpawnOptions {
+        cwd?: string;
+        env?: any;
+        stdio?: any;
+        detached?: boolean;
+        uid?: number;
+        gid?: number;
+        shell?: boolean | string;
+        windowsVerbatimArguments?: boolean;
+    }
+
+    export function spawn(command: string, args?: string[], options?: SpawnOptions): ChildProcess;
+
+    export interface ExecOptions {
+        cwd?: string;
+        env?: any;
+        shell?: string;
+        timeout?: number;
+        maxBuffer?: number;
+        killSignal?: string;
+        uid?: number;
+        gid?: number;
+    }
+
+    export interface ExecOptionsWithStringEncoding extends ExecOptions {
+        encoding: BufferEncoding;
+    }
+
+    export interface ExecOptionsWithBufferEncoding extends ExecOptions {
+        encoding: string | null; // specify `null`.
+    }
+
+    // no `options` definitely means stdout/stderr are `string`.
+    export function exec(command: string, callback?: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+
+    // `options` with `"buffer"` or `null` for `encoding` means stdout/stderr are definitely `Buffer`.
+    export function exec(command: string, options: { encoding: "buffer" | null } & ExecOptions, callback?: (error: Error | null, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
+
+    // `options` with well known `encoding` means stdout/stderr are definitely `string`.
+    export function exec(command: string, options: { encoding: BufferEncoding } & ExecOptions, callback?: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+
+    // `options` with an `encoding` whose type is `string` means stdout/stderr could either be `Buffer` or `string`.
+    // There is no guarantee the `encoding` is unknown as `string` is a superset of `BufferEncoding`.
+    export function exec(command: string, options: { encoding: string } & ExecOptions, callback?: (error: Error | null, stdout: string | Buffer, stderr: string | Buffer) => void): ChildProcess;
+
+    // `options` without an `encoding` means stdout/stderr are definitely `string`.
+    export function exec(command: string, options: ExecOptions, callback?: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+
+    // fallback if nothing else matches. Worst case is always `string | Buffer`.
+    export function exec(command: string, options: ({ encoding?: string | null } & ExecOptions) | undefined | null, callback?: (error: Error | null, stdout: string | Buffer, stderr: string | Buffer) => void): ChildProcess;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace exec {
+        export function __promisify__(command: string): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(command: string, options: { encoding: "buffer" | null } & ExecOptions): Promise<{ stdout: Buffer, stderr: Buffer }>;
+        export function __promisify__(command: string, options: { encoding: BufferEncoding } & ExecOptions): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(command: string, options: ExecOptions): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(command: string, options?: ({ encoding?: string | null } & ExecOptions) | null): Promise<{ stdout: string | Buffer, stderr: string | Buffer }>;
+    }
+
+    export interface ExecFileOptions {
+        cwd?: string;
+        env?: any;
+        timeout?: number;
+        maxBuffer?: number;
+        killSignal?: string;
+        uid?: number;
+        gid?: number;
+        windowsVerbatimArguments?: boolean;
+    }
+    export interface ExecFileOptionsWithStringEncoding extends ExecFileOptions {
+        encoding: BufferEncoding;
+    }
+    export interface ExecFileOptionsWithBufferEncoding extends ExecFileOptions {
+        encoding: 'buffer' | null;
+    }
+    export interface ExecFileOptionsWithOtherEncoding extends ExecFileOptions {
+        encoding: string;
+    }
+
+    export function execFile(file: string): ChildProcess;
+    export function execFile(file: string, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null): ChildProcess;
+    export function execFile(file: string, args: string[] | undefined | null): ChildProcess;
+    export function execFile(file: string, args: string[] | undefined | null, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null): ChildProcess;
+
+    // no `options` definitely means stdout/stderr are `string`.
+    export function execFile(file: string, callback: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+    export function execFile(file: string, args: string[] | undefined | null, callback: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+
+    // `options` with `"buffer"` or `null` for `encoding` means stdout/stderr are definitely `Buffer`.
+    export function execFile(file: string, options: ExecFileOptionsWithBufferEncoding, callback: (error: Error | null, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
+    export function execFile(file: string, args: string[] | undefined | null, options: ExecFileOptionsWithBufferEncoding, callback: (error: Error | null, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
+
+    // `options` with well known `encoding` means stdout/stderr are definitely `string`.
+    export function execFile(file: string, options: ExecFileOptionsWithStringEncoding, callback: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+    export function execFile(file: string, args: string[] | undefined | null, options: ExecFileOptionsWithStringEncoding, callback: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+
+    // `options` with an `encoding` whose type is `string` means stdout/stderr could either be `Buffer` or `string`.
+    // There is no guarantee the `encoding` is unknown as `string` is a superset of `BufferEncoding`.
+    export function execFile(file: string, options: ExecFileOptionsWithOtherEncoding, callback: (error: Error | null, stdout: string | Buffer, stderr: string | Buffer) => void): ChildProcess;
+    export function execFile(file: string, args: string[] | undefined | null, options: ExecFileOptionsWithOtherEncoding, callback: (error: Error | null, stdout: string | Buffer, stderr: string | Buffer) => void): ChildProcess;
+
+    // `options` without an `encoding` means stdout/stderr are definitely `string`.
+    export function execFile(file: string, options: ExecFileOptions, callback: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+    export function execFile(file: string, args: string[] | undefined | null, options: ExecFileOptions, callback: (error: Error | null, stdout: string, stderr: string) => void): ChildProcess;
+
+    // fallback if nothing else matches. Worst case is always `string | Buffer`.
+    export function execFile(file: string, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null, callback: ((error: Error | null, stdout: string | Buffer, stderr: string | Buffer) => void) | undefined | null): ChildProcess;
+    export function execFile(file: string, args: string[] | undefined | null, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null, callback: ((error: Error | null, stdout: string | Buffer, stderr: string | Buffer) => void) | undefined | null): ChildProcess;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace execFile {
+        export function __promisify__(file: string): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(file: string, args: string[] | undefined | null): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(file: string, options: ExecFileOptionsWithBufferEncoding): Promise<{ stdout: Buffer, stderr: Buffer }>;
+        export function __promisify__(file: string, args: string[] | undefined | null, options: ExecFileOptionsWithBufferEncoding): Promise<{ stdout: Buffer, stderr: Buffer }>;
+        export function __promisify__(file: string, options: ExecFileOptionsWithStringEncoding): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(file: string, args: string[] | undefined | null, options: ExecFileOptionsWithStringEncoding): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(file: string, options: ExecFileOptionsWithOtherEncoding): Promise<{ stdout: string | Buffer, stderr: string | Buffer }>;
+        export function __promisify__(file: string, args: string[] | undefined | null, options: ExecFileOptionsWithOtherEncoding): Promise<{ stdout: string | Buffer, stderr: string | Buffer }>;
+        export function __promisify__(file: string, options: ExecFileOptions): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(file: string, args: string[] | undefined | null, options: ExecFileOptions): Promise<{ stdout: string, stderr: string }>;
+        export function __promisify__(file: string, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null): Promise<{ stdout: string | Buffer, stderr: string | Buffer }>;
+        export function __promisify__(file: string, args: string[] | undefined | null, options: ({ encoding?: string | null } & ExecFileOptions) | undefined | null): Promise<{ stdout: string | Buffer, stderr: string | Buffer }>;
+    }
+
+    export interface ForkOptions {
+        cwd?: string;
+        env?: any;
+        execPath?: string;
+        execArgv?: string[];
+        silent?: boolean;
+        stdio?: any[];
+        uid?: number;
+        gid?: number;
+        windowsVerbatimArguments?: boolean;
+    }
+    export function fork(modulePath: string, args?: string[], options?: ForkOptions): ChildProcess;
+
+    export interface SpawnSyncOptions {
+        cwd?: string;
+        input?: string | Buffer;
+        stdio?: any;
+        env?: any;
+        uid?: number;
+        gid?: number;
+        timeout?: number;
+        killSignal?: string;
+        maxBuffer?: number;
+        encoding?: string;
+        shell?: boolean | string;
+        windowsVerbatimArguments?: boolean;
+    }
+    export interface SpawnSyncOptionsWithStringEncoding extends SpawnSyncOptions {
+        encoding: BufferEncoding;
+    }
+    export interface SpawnSyncOptionsWithBufferEncoding extends SpawnSyncOptions {
+        encoding: string; // specify `null`.
+    }
+    export interface SpawnSyncReturns<T> {
+        pid: number;
+        output: string[];
+        stdout: T;
+        stderr: T;
+        status: number;
+        signal: string;
+        error: Error;
+    }
+    export function spawnSync(command: string): SpawnSyncReturns<Buffer>;
+    export function spawnSync(command: string, options?: SpawnSyncOptionsWithStringEncoding): SpawnSyncReturns<string>;
+    export function spawnSync(command: string, options?: SpawnSyncOptionsWithBufferEncoding): SpawnSyncReturns<Buffer>;
+    export function spawnSync(command: string, options?: SpawnSyncOptions): SpawnSyncReturns<Buffer>;
+    export function spawnSync(command: string, args?: string[], options?: SpawnSyncOptionsWithStringEncoding): SpawnSyncReturns<string>;
+    export function spawnSync(command: string, args?: string[], options?: SpawnSyncOptionsWithBufferEncoding): SpawnSyncReturns<Buffer>;
+    export function spawnSync(command: string, args?: string[], options?: SpawnSyncOptions): SpawnSyncReturns<Buffer>;
+
+    export interface ExecSyncOptions {
+        cwd?: string;
+        input?: string | Buffer;
+        stdio?: any;
+        env?: any;
+        shell?: string;
+        uid?: number;
+        gid?: number;
+        timeout?: number;
+        killSignal?: string;
+        maxBuffer?: number;
+        encoding?: string;
+    }
+    export interface ExecSyncOptionsWithStringEncoding extends ExecSyncOptions {
+        encoding: BufferEncoding;
+    }
+    export interface ExecSyncOptionsWithBufferEncoding extends ExecSyncOptions {
+        encoding: string; // specify `null`.
+    }
+    export function execSync(command: string): Buffer;
+    export function execSync(command: string, options?: ExecSyncOptionsWithStringEncoding): string;
+    export function execSync(command: string, options?: ExecSyncOptionsWithBufferEncoding): Buffer;
+    export function execSync(command: string, options?: ExecSyncOptions): Buffer;
+
+    export interface ExecFileSyncOptions {
+        cwd?: string;
+        input?: string | Buffer;
+        stdio?: any;
+        env?: any;
+        uid?: number;
+        gid?: number;
+        timeout?: number;
+        killSignal?: string;
+        maxBuffer?: number;
+        encoding?: string;
+    }
+    export interface ExecFileSyncOptionsWithStringEncoding extends ExecFileSyncOptions {
+        encoding: BufferEncoding;
+    }
+    export interface ExecFileSyncOptionsWithBufferEncoding extends ExecFileSyncOptions {
+        encoding: string; // specify `null`.
+    }
+    export function execFileSync(command: string): Buffer;
+    export function execFileSync(command: string, options?: ExecFileSyncOptionsWithStringEncoding): string;
+    export function execFileSync(command: string, options?: ExecFileSyncOptionsWithBufferEncoding): Buffer;
+    export function execFileSync(command: string, options?: ExecFileSyncOptions): Buffer;
+    export function execFileSync(command: string, args?: string[], options?: ExecFileSyncOptionsWithStringEncoding): string;
+    export function execFileSync(command: string, args?: string[], options?: ExecFileSyncOptionsWithBufferEncoding): Buffer;
+    export function execFileSync(command: string, args?: string[], options?: ExecFileSyncOptions): Buffer;
 }
 
 declare module "url" {
-	export interface Url {
-		href?: string;
-		protocol?: string;
-		auth?: string;
-		hostname?: string;
-		port?: string;
-		host?: string;
-		pathname?: string;
-		search?: string;
-		query?: string | any;
-		slashes?: boolean;
-		hash?: string;
-		path?: string;
-	}
-
-	export interface UrlObject {
-		protocol?: string;
-		slashes?: boolean;
-		auth?: string;
-		host?: string;
-		hostname?: string;
-		port?: string | number;
-		pathname?: string;
-		search?: string;
-		query?: { [key: string]: any; };
-		hash?: string;
-	}
-
-	export function parse(urlStr: string, parseQueryString?: boolean, slashesDenoteHost?: boolean): Url;
-	export function format(URL: URL, options?: URLFormatOptions): string;
-	export function format(urlObject: UrlObject): string;
-	export function resolve(from: string, to: string): string;
-
-	export interface URLFormatOptions {
-		auth?: boolean;
-		fragment?: boolean;
-		search?: boolean;
-		unicode?: boolean;
-	}
-
-	export class URLSearchParams implements Iterable<string[]> {
-		constructor(init?: URLSearchParams | string | { [key: string]: string | string[] } | Iterable<string[]>);
-		append(name: string, value: string): void;
-		delete(name: string): void;
-		entries(): Iterator<string[]>;
-		forEach(callback: (value: string, name: string) => void): void;
-		get(name: string): string | null;
-		getAll(name: string): string[];
-		has(name: string): boolean;
-		keys(): Iterator<string>;
-		set(name: string, value: string): void;
-		sort(): void;
-		toString(): string;
-		values(): Iterator<string>;
-		[Symbol.iterator](): Iterator<string[]>;
-	}
-
-	export class URL {
-		constructor(input: string, base?: string | URL);
-		hash: string;
-		host: string;
-		hostname: string;
-		href: string;
-		readonly origin: string;
-		password: string;
-		pathname: string;
-		port: string;
-		protocol: string;
-		search: string;
-		readonly searchParams: URLSearchParams;
-		username: string;
-		toString(): string;
-		toJSON(): string;
-	}
+    import { ParsedUrlQuery } from 'querystring';
+
+    export interface UrlObjectCommon {
+        auth?: string;
+        hash?: string;
+        host?: string;
+        hostname?: string;
+        href?: string;
+        path?: string;
+        pathname?: string;
+        protocol?: string;
+        search?: string;
+        slashes?: boolean;
+    }
+
+    // Input to `url.format`
+    export interface UrlObject extends UrlObjectCommon {
+        port?: string | number;
+        query?: string | null | { [key: string]: any };
+    }
+
+    // Output of `url.parse`
+    export interface Url extends UrlObjectCommon {
+        port?: string;
+        query?: string | null | ParsedUrlQuery;
+    }
+
+    export interface UrlWithParsedQuery extends Url {
+        query: ParsedUrlQuery;
+    }
+
+    export interface UrlWithStringQuery extends Url {
+        query: string | null;
+    }
+
+    export function parse(urlStr: string): UrlWithStringQuery;
+    export function parse(urlStr: string, parseQueryString: false | undefined, slashesDenoteHost?: boolean): UrlWithStringQuery;
+    export function parse(urlStr: string, parseQueryString: true, slashesDenoteHost?: boolean): UrlWithParsedQuery;
+    export function parse(urlStr: string, parseQueryString: boolean, slashesDenoteHost?: boolean): Url;
+
+    export function format(URL: URL, options?: URLFormatOptions): string;
+    export function format(urlObject: UrlObject | string): string;
+    export function resolve(from: string, to: string): string;
+
+    export interface URLFormatOptions {
+        auth?: boolean;
+        fragment?: boolean;
+        search?: boolean;
+        unicode?: boolean;
+    }
+
+    export class URLSearchParams implements Iterable<[string, string]> {
+        constructor(init?: URLSearchParams | string | { [key: string]: string | string[] | undefined } | Iterable<[string, string]> | Array<[string, string]>);
+        append(name: string, value: string): void;
+        delete(name: string): void;
+        entries(): IterableIterator<[string, string]>;
+        forEach(callback: (value: string, name: string) => void): void;
+        get(name: string): string | null;
+        getAll(name: string): string[];
+        has(name: string): boolean;
+        keys(): IterableIterator<string>;
+        set(name: string, value: string): void;
+        sort(): void;
+        toString(): string;
+        values(): IterableIterator<string>;
+        [Symbol.iterator](): IterableIterator<[string, string]>;
+    }
+
+    export class URL {
+        constructor(input: string, base?: string | URL);
+        hash: string;
+        host: string;
+        hostname: string;
+        href: string;
+        readonly origin: string;
+        password: string;
+        pathname: string;
+        port: string;
+        protocol: string;
+        search: string;
+        readonly searchParams: URLSearchParams;
+        username: string;
+        toString(): string;
+        toJSON(): string;
+    }
 }
 
 declare module "dns" {
-	// Supported getaddrinfo flags.
-	export const ADDRCONFIG: number;
-	export const V4MAPPED: number;
-
-	export interface LookupOptions {
-		family?: number;
-		hints?: number;
-		all?: boolean;
-	}
-
-	export interface LookupOneOptions extends LookupOptions {
-		all?: false;
-	}
-
-	export interface LookupAllOptions extends LookupOptions {
-		all: true;
-	}
-
-	export interface LookupAddress {
-		address: string;
-		family: number;
-	}
-
-	export function lookup(hostname: string, family: number, callback: (err: NodeJS.ErrnoException, address: string, family: number) => void): void;
-	export function lookup(hostname: string, options: LookupOneOptions, callback: (err: NodeJS.ErrnoException, address: string, family: number) => void): void;
-	export function lookup(hostname: string, options: LookupAllOptions, callback: (err: NodeJS.ErrnoException, addresses: LookupAddress[]) => void): void;
-	export function lookup(hostname: string, options: LookupOptions, callback: (err: NodeJS.ErrnoException, address: string | LookupAddress[], family: number) => void): void;
-	export function lookup(hostname: string, callback: (err: NodeJS.ErrnoException, address: string, family: number) => void): void;
-
-	export interface ResolveOptions {
-		ttl: boolean;
-	}
-
-	export interface ResolveWithTtlOptions extends ResolveOptions {
-		ttl: true;
-	}
-
-	export interface RecordWithTtl {
-		address: string;
-		ttl: number;
-	}
-
-	export interface MxRecord {
-		priority: number;
-		exchange: string;
-	}
-
-	export interface NaptrRecord {
-		flags: string;
-		service: string;
-		regexp: string;
-		replacement: string;
-		order: number;
-		preference: number;
-	}
-
-	export interface SoaRecord {
-		nsname: string;
-		hostmaster: string;
-		serial: number;
-		refresh: number;
-		retry: number;
-		expire: number;
-		minttl: number;
-	}
-
-	export interface SrvRecord {
-		priority: number;
-		weight: number;
-		port: number;
-		name: string;
-	}
-
-	export function resolve(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolve(hostname: string, rrtype: "A", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolve(hostname: string, rrtype: "AAAA", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolve(hostname: string, rrtype: "CNAME", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolve(hostname: string, rrtype: "MX", callback: (err: NodeJS.ErrnoException, addresses: MxRecord[]) => void): void;
-	export function resolve(hostname: string, rrtype: "NAPTR", callback: (err: NodeJS.ErrnoException, addresses: NaptrRecord[]) => void): void;
-	export function resolve(hostname: string, rrtype: "NS", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolve(hostname: string, rrtype: "PTR", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolve(hostname: string, rrtype: "SOA", callback: (err: NodeJS.ErrnoException, addresses: SoaRecord) => void): void;
-	export function resolve(hostname: string, rrtype: "SRV", callback: (err: NodeJS.ErrnoException, addresses: SrvRecord[]) => void): void;
-	export function resolve(hostname: string, rrtype: "TXT", callback: (err: NodeJS.ErrnoException, addresses: string[][]) => void): void;
-	export function resolve(hostname: string, rrtype: string, callback: (err: NodeJS.ErrnoException, addresses: string[] | MxRecord[] | NaptrRecord[] | SoaRecord | SrvRecord[] | string[][]) => void): void;
-
-	export function resolve4(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolve4(hostname: string, options: ResolveWithTtlOptions, callback: (err: NodeJS.ErrnoException, addresses: RecordWithTtl[]) => void): void;
-	export function resolve4(hostname: string, options: ResolveOptions, callback: (err: NodeJS.ErrnoException, addresses: string[] | RecordWithTtl[]) => void): void;
-
-	export function resolve6(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolve6(hostname: string, options: ResolveWithTtlOptions, callback: (err: NodeJS.ErrnoException, addresses: RecordWithTtl[]) => void): void;
-	export function resolve6(hostname: string, options: ResolveOptions, callback: (err: NodeJS.ErrnoException, addresses: string[] | RecordWithTtl[]) => void): void;
-
-	export function resolveCname(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolveMx(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: MxRecord[]) => void): void;
-	export function resolveNaptr(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: NaptrRecord[]) => void): void;
-	export function resolveNs(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolvePtr(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
-	export function resolveSoa(hostname: string, callback: (err: NodeJS.ErrnoException, address: SoaRecord) => void): void;
-	export function resolveSrv(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: SrvRecord[]) => void): void;
-	export function resolveTxt(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[][]) => void): void;
-
-	export function reverse(ip: string, callback: (err: NodeJS.ErrnoException, hostnames: string[]) => void): void;
-	export function setServers(servers: string[]): void;
-
-	//Error codes
-	export var NODATA: string;
-	export var FORMERR: string;
-	export var SERVFAIL: string;
-	export var NOTFOUND: string;
-	export var NOTIMP: string;
-	export var REFUSED: string;
-	export var BADQUERY: string;
-	export var BADNAME: string;
-	export var BADFAMILY: string;
-	export var BADRESP: string;
-	export var CONNREFUSED: string;
-	export var TIMEOUT: string;
-	export var EOF: string;
-	export var FILE: string;
-	export var NOMEM: string;
-	export var DESTRUCTION: string;
-	export var BADSTR: string;
-	export var BADFLAGS: string;
-	export var NONAME: string;
-	export var BADHINTS: string;
-	export var NOTINITIALIZED: string;
-	export var LOADIPHLPAPI: string;
-	export var ADDRGETNETWORKPARAMS: string;
-	export var CANCELLED: string;
+    // Supported getaddrinfo flags.
+    export const ADDRCONFIG: number;
+    export const V4MAPPED: number;
+
+    export interface LookupOptions {
+        family?: number;
+        hints?: number;
+        all?: boolean;
+    }
+
+    export interface LookupOneOptions extends LookupOptions {
+        all?: false;
+    }
+
+    export interface LookupAllOptions extends LookupOptions {
+        all: true;
+    }
+
+    export interface LookupAddress {
+        address: string;
+        family: number;
+    }
+
+    export function lookup(hostname: string, family: number, callback: (err: NodeJS.ErrnoException, address: string, family: number) => void): void;
+    export function lookup(hostname: string, options: LookupOneOptions, callback: (err: NodeJS.ErrnoException, address: string, family: number) => void): void;
+    export function lookup(hostname: string, options: LookupAllOptions, callback: (err: NodeJS.ErrnoException, addresses: LookupAddress[]) => void): void;
+    export function lookup(hostname: string, options: LookupOptions, callback: (err: NodeJS.ErrnoException, address: string | LookupAddress[], family: number) => void): void;
+    export function lookup(hostname: string, callback: (err: NodeJS.ErrnoException, address: string, family: number) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace lookup {
+        export function __promisify__(hostname: string, options: LookupAllOptions): Promise<{ address: LookupAddress[] }>;
+        export function __promisify__(hostname: string, options?: LookupOneOptions | number): Promise<{ address: string, family: number }>;
+        export function __promisify__(hostname: string, options?: LookupOptions | number): Promise<{ address: string | LookupAddress[], family?: number }>;
+    }
+
+    export interface ResolveOptions {
+        ttl: boolean;
+    }
+
+    export interface ResolveWithTtlOptions extends ResolveOptions {
+        ttl: true;
+    }
+
+    export interface RecordWithTtl {
+        address: string;
+        ttl: number;
+    }
+
+    export interface MxRecord {
+        priority: number;
+        exchange: string;
+    }
+
+    export interface NaptrRecord {
+        flags: string;
+        service: string;
+        regexp: string;
+        replacement: string;
+        order: number;
+        preference: number;
+    }
+
+    export interface SoaRecord {
+        nsname: string;
+        hostmaster: string;
+        serial: number;
+        refresh: number;
+        retry: number;
+        expire: number;
+        minttl: number;
+    }
+
+    export interface SrvRecord {
+        priority: number;
+        weight: number;
+        port: number;
+        name: string;
+    }
+
+    export function resolve(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolve(hostname: string, rrtype: "A", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolve(hostname: string, rrtype: "AAAA", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolve(hostname: string, rrtype: "CNAME", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolve(hostname: string, rrtype: "MX", callback: (err: NodeJS.ErrnoException, addresses: MxRecord[]) => void): void;
+    export function resolve(hostname: string, rrtype: "NAPTR", callback: (err: NodeJS.ErrnoException, addresses: NaptrRecord[]) => void): void;
+    export function resolve(hostname: string, rrtype: "NS", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolve(hostname: string, rrtype: "PTR", callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolve(hostname: string, rrtype: "SOA", callback: (err: NodeJS.ErrnoException, addresses: SoaRecord) => void): void;
+    export function resolve(hostname: string, rrtype: "SRV", callback: (err: NodeJS.ErrnoException, addresses: SrvRecord[]) => void): void;
+    export function resolve(hostname: string, rrtype: "TXT", callback: (err: NodeJS.ErrnoException, addresses: string[][]) => void): void;
+    export function resolve(hostname: string, rrtype: string, callback: (err: NodeJS.ErrnoException, addresses: string[] | MxRecord[] | NaptrRecord[] | SoaRecord | SrvRecord[] | string[][]) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace resolve {
+        export function __promisify__(hostname: string, rrtype?: "A" | "AAAA" | "CNAME" | "NS" | "PTR"): Promise<string[]>;
+        export function __promisify__(hostname: string, rrtype: "MX"): Promise<MxRecord[]>;
+        export function __promisify__(hostname: string, rrtype: "NAPTR"): Promise<NaptrRecord[]>;
+        export function __promisify__(hostname: string, rrtype: "SOA"): Promise<SoaRecord>;
+        export function __promisify__(hostname: string, rrtype: "SRV"): Promise<SrvRecord[]>;
+        export function __promisify__(hostname: string, rrtype: "TXT"): Promise<string[][]>;
+        export function __promisify__(hostname: string, rrtype?: string): Promise<string[] | MxRecord[] | NaptrRecord[] | SoaRecord | SrvRecord[] | string[][]>;
+    }
+
+    export function resolve4(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolve4(hostname: string, options: ResolveWithTtlOptions, callback: (err: NodeJS.ErrnoException, addresses: RecordWithTtl[]) => void): void;
+    export function resolve4(hostname: string, options: ResolveOptions, callback: (err: NodeJS.ErrnoException, addresses: string[] | RecordWithTtl[]) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace resolve4 {
+        export function __promisify__(hostname: string): Promise<string[]>;
+        export function __promisify__(hostname: string, options: ResolveWithTtlOptions): Promise<RecordWithTtl[]>;
+        export function __promisify__(hostname: string, options?: ResolveOptions): Promise<string[] | RecordWithTtl[]>;
+    }
+
+    export function resolve6(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolve6(hostname: string, options: ResolveWithTtlOptions, callback: (err: NodeJS.ErrnoException, addresses: RecordWithTtl[]) => void): void;
+    export function resolve6(hostname: string, options: ResolveOptions, callback: (err: NodeJS.ErrnoException, addresses: string[] | RecordWithTtl[]) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace resolve6 {
+        export function __promisify__(hostname: string): Promise<string[]>;
+        export function __promisify__(hostname: string, options: ResolveWithTtlOptions): Promise<RecordWithTtl[]>;
+        export function __promisify__(hostname: string, options?: ResolveOptions): Promise<string[] | RecordWithTtl[]>;
+    }
+
+    export function resolveCname(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolveMx(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: MxRecord[]) => void): void;
+    export function resolveNaptr(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: NaptrRecord[]) => void): void;
+    export function resolveNs(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolvePtr(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[]) => void): void;
+    export function resolveSoa(hostname: string, callback: (err: NodeJS.ErrnoException, address: SoaRecord) => void): void;
+    export function resolveSrv(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: SrvRecord[]) => void): void;
+    export function resolveTxt(hostname: string, callback: (err: NodeJS.ErrnoException, addresses: string[][]) => void): void;
+
+    export function reverse(ip: string, callback: (err: NodeJS.ErrnoException, hostnames: string[]) => void): void;
+    export function setServers(servers: string[]): void;
+
+    // Error codes
+    export var NODATA: string;
+    export var FORMERR: string;
+    export var SERVFAIL: string;
+    export var NOTFOUND: string;
+    export var NOTIMP: string;
+    export var REFUSED: string;
+    export var BADQUERY: string;
+    export var BADNAME: string;
+    export var BADFAMILY: string;
+    export var BADRESP: string;
+    export var CONNREFUSED: string;
+    export var TIMEOUT: string;
+    export var EOF: string;
+    export var FILE: string;
+    export var NOMEM: string;
+    export var DESTRUCTION: string;
+    export var BADSTR: string;
+    export var BADFLAGS: string;
+    export var NONAME: string;
+    export var BADHINTS: string;
+    export var NOTINITIALIZED: string;
+    export var LOADIPHLPAPI: string;
+    export var ADDRGETNETWORKPARAMS: string;
+    export var CANCELLED: string;
 }
 
 declare module "net" {
-	import * as stream from "stream";
-	import * as events from "events";
-
-	export interface Socket extends stream.Duplex {
-		// Extended base methods
-		write(buffer: Buffer): boolean;
-		write(buffer: Buffer, cb?: Function): boolean;
-		write(str: string, cb?: Function): boolean;
-		write(str: string, encoding?: string, cb?: Function): boolean;
-		write(str: string, encoding?: string, fd?: string): boolean;
-
-		connect(port: number, host?: string, connectionListener?: Function): void;
-		connect(path: string, connectionListener?: Function): void;
-		bufferSize: number;
-		setEncoding(encoding?: string): this;
-		write(data: any, encoding?: string, callback?: Function): void;
-		destroy(err?: any): void;
-		pause(): this;
-		resume(): this;
-		setTimeout(timeout: number, callback?: Function): void;
-		setNoDelay(noDelay?: boolean): void;
-		setKeepAlive(enable?: boolean, initialDelay?: number): void;
-		address(): { port: number; family: string; address: string; };
-		unref(): void;
-		ref(): void;
-
-		remoteAddress: string;
-		remoteFamily: string;
-		remotePort: number;
-		localAddress: string;
-		localPort: number;
-		bytesRead: number;
-		bytesWritten: number;
-		connecting: boolean;
-		destroyed: boolean;
-
-		// Extended base methods
-		end(): void;
-		end(buffer: Buffer, cb?: Function): void;
-		end(str: string, cb?: Function): void;
-		end(str: string, encoding?: string, cb?: Function): void;
-		end(data?: any, encoding?: string): void;
+    import * as stream from "stream";
+    import * as events from "events";
+    import * as dns from "dns";
+
+    type LookupFunction = (hostname: string, options: dns.LookupOneOptions, callback: (err: NodeJS.ErrnoException | null, address: string, family: number) => void) => void;
+
+    export interface SocketConstructorOpts {
+        fd?: number;
+        allowHalfOpen?: boolean;
+        readable?: boolean;
+        writable?: boolean;
+    }
+
+    export interface TcpSocketConnectOpts {
+        port: number;
+        host?: string;
+        localAddress?: string;
+        localPort?: number;
+        hints?: number;
+        family?: number;
+        lookup?: LookupFunction;
+    }
+
+    export interface IpcSocketConnectOpts {
+        path: string;
+    }
+
+    export type SocketConnectOpts = TcpSocketConnectOpts | IpcSocketConnectOpts;
+
+    export class Socket extends stream.Duplex {
+        constructor(options?: SocketConstructorOpts);
+
+        // Extended base methods
+        write(buffer: Buffer): boolean;
+        write(buffer: Buffer, cb?: Function): boolean;
+        write(str: string, cb?: Function): boolean;
+        write(str: string, encoding?: string, cb?: Function): boolean;
+        write(str: string, encoding?: string, fd?: string): boolean;
+        write(data: any, encoding?: string, callback?: Function): void;
+
+        connect(options: SocketConnectOpts, connectionListener?: Function): this;
+        connect(port: number, host: string, connectionListener?: Function): this;
+        connect(port: number, connectionListener?: Function): this;
+        connect(path: string, connectionListener?: Function): this;
+
+        bufferSize: number;
+        setEncoding(encoding?: string): this;
+        destroy(err?: any): void;
+        pause(): this;
+        resume(): this;
+        setTimeout(timeout: number, callback?: Function): this;
+        setNoDelay(noDelay?: boolean): this;
+        setKeepAlive(enable?: boolean, initialDelay?: number): this;
+        address(): { port: number; family: string; address: string; };
+        unref(): void;
+        ref(): void;
+
+        remoteAddress?: string;
+        remoteFamily?: string;
+        remotePort?: number;
+        localAddress: string;
+        localPort: number;
+        bytesRead: number;
+        bytesWritten: number;
+        connecting: boolean;
+        destroyed: boolean;
+
+        // Extended base methods
+        end(): void;
+        end(buffer: Buffer, cb?: Function): void;
+        end(str: string, cb?: Function): void;
+        end(str: string, encoding?: string, cb?: Function): void;
+        end(data?: any, encoding?: string): void;
 
         /**
          * events.EventEmitter
@@ -2137,97 +2640,97 @@ declare module "net" {
          *   7. lookup
          *   8. timeout
          */
-		addListener(event: string, listener: Function): this;
-		addListener(event: "close", listener: (had_error: boolean) => void): this;
-		addListener(event: "connect", listener: () => void): this;
-		addListener(event: "data", listener: (data: Buffer) => void): this;
-		addListener(event: "drain", listener: () => void): this;
-		addListener(event: "end", listener: () => void): this;
-		addListener(event: "error", listener: (err: Error) => void): this;
-		addListener(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
-		addListener(event: "timeout", listener: () => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "close", had_error: boolean): boolean;
-		emit(event: "connect"): boolean;
-		emit(event: "data", data: Buffer): boolean;
-		emit(event: "drain"): boolean;
-		emit(event: "end"): boolean;
-		emit(event: "error", err: Error): boolean;
-		emit(event: "lookup", err: Error, address: string, family: string | number, host: string): boolean;
-		emit(event: "timeout"): boolean;
-
-		on(event: string, listener: Function): this;
-		on(event: "close", listener: (had_error: boolean) => void): this;
-		on(event: "connect", listener: () => void): this;
-		on(event: "data", listener: (data: Buffer) => void): this;
-		on(event: "drain", listener: () => void): this;
-		on(event: "end", listener: () => void): this;
-		on(event: "error", listener: (err: Error) => void): this;
-		on(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
-		on(event: "timeout", listener: () => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "close", listener: (had_error: boolean) => void): this;
-		once(event: "connect", listener: () => void): this;
-		once(event: "data", listener: (data: Buffer) => void): this;
-		once(event: "drain", listener: () => void): this;
-		once(event: "end", listener: () => void): this;
-		once(event: "error", listener: (err: Error) => void): this;
-		once(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
-		once(event: "timeout", listener: () => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "close", listener: (had_error: boolean) => void): this;
-		prependListener(event: "connect", listener: () => void): this;
-		prependListener(event: "data", listener: (data: Buffer) => void): this;
-		prependListener(event: "drain", listener: () => void): this;
-		prependListener(event: "end", listener: () => void): this;
-		prependListener(event: "error", listener: (err: Error) => void): this;
-		prependListener(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
-		prependListener(event: "timeout", listener: () => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "close", listener: (had_error: boolean) => void): this;
-		prependOnceListener(event: "connect", listener: () => void): this;
-		prependOnceListener(event: "data", listener: (data: Buffer) => void): this;
-		prependOnceListener(event: "drain", listener: () => void): this;
-		prependOnceListener(event: "end", listener: () => void): this;
-		prependOnceListener(event: "error", listener: (err: Error) => void): this;
-		prependOnceListener(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
-		prependOnceListener(event: "timeout", listener: () => void): this;
-	}
-
-	export var Socket: {
-		new(options?: { fd?: number; allowHalfOpen?: boolean; readable?: boolean; writable?: boolean; }): Socket;
-	};
-
-	export interface ListenOptions {
-		port?: number;
-		host?: string;
-		backlog?: number;
-		path?: string;
-		exclusive?: boolean;
-	}
-
-	export interface Server extends events.EventEmitter {
-		listen(port: number, hostname?: string, backlog?: number, listeningListener?: Function): Server;
-		listen(port: number, hostname?: string, listeningListener?: Function): Server;
-		listen(port: number, backlog?: number, listeningListener?: Function): Server;
-		listen(port: number, listeningListener?: Function): Server;
-		listen(path: string, backlog?: number, listeningListener?: Function): Server;
-		listen(path: string, listeningListener?: Function): Server;
-		listen(options: ListenOptions, listeningListener?: Function): Server;
-		listen(handle: any, backlog?: number, listeningListener?: Function): Server;
-		listen(handle: any, listeningListener?: Function): Server;
-		close(callback?: Function): Server;
-		address(): { port: number; family: string; address: string; };
-		getConnections(cb: (error: Error, count: number) => void): void;
-		ref(): Server;
-		unref(): Server;
-		maxConnections: number;
-		connections: number;
-		listening: boolean;
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "close", listener: (had_error: boolean) => void): this;
+        addListener(event: "connect", listener: () => void): this;
+        addListener(event: "data", listener: (data: Buffer) => void): this;
+        addListener(event: "drain", listener: () => void): this;
+        addListener(event: "end", listener: () => void): this;
+        addListener(event: "error", listener: (err: Error) => void): this;
+        addListener(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
+        addListener(event: "timeout", listener: () => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "close", had_error: boolean): boolean;
+        emit(event: "connect"): boolean;
+        emit(event: "data", data: Buffer): boolean;
+        emit(event: "drain"): boolean;
+        emit(event: "end"): boolean;
+        emit(event: "error", err: Error): boolean;
+        emit(event: "lookup", err: Error, address: string, family: string | number, host: string): boolean;
+        emit(event: "timeout"): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "close", listener: (had_error: boolean) => void): this;
+        on(event: "connect", listener: () => void): this;
+        on(event: "data", listener: (data: Buffer) => void): this;
+        on(event: "drain", listener: () => void): this;
+        on(event: "end", listener: () => void): this;
+        on(event: "error", listener: (err: Error) => void): this;
+        on(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
+        on(event: "timeout", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "close", listener: (had_error: boolean) => void): this;
+        once(event: "connect", listener: () => void): this;
+        once(event: "data", listener: (data: Buffer) => void): this;
+        once(event: "drain", listener: () => void): this;
+        once(event: "end", listener: () => void): this;
+        once(event: "error", listener: (err: Error) => void): this;
+        once(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
+        once(event: "timeout", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "close", listener: (had_error: boolean) => void): this;
+        prependListener(event: "connect", listener: () => void): this;
+        prependListener(event: "data", listener: (data: Buffer) => void): this;
+        prependListener(event: "drain", listener: () => void): this;
+        prependListener(event: "end", listener: () => void): this;
+        prependListener(event: "error", listener: (err: Error) => void): this;
+        prependListener(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
+        prependListener(event: "timeout", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "close", listener: (had_error: boolean) => void): this;
+        prependOnceListener(event: "connect", listener: () => void): this;
+        prependOnceListener(event: "data", listener: (data: Buffer) => void): this;
+        prependOnceListener(event: "drain", listener: () => void): this;
+        prependOnceListener(event: "end", listener: () => void): this;
+        prependOnceListener(event: "error", listener: (err: Error) => void): this;
+        prependOnceListener(event: "lookup", listener: (err: Error, address: string, family: string | number, host: string) => void): this;
+        prependOnceListener(event: "timeout", listener: () => void): this;
+    }
+
+    export interface ListenOptions {
+        port?: number;
+        host?: string;
+        backlog?: number;
+        path?: string;
+        exclusive?: boolean;
+    }
+
+    // https://github.com/nodejs/node/blob/master/lib/net.js
+    export class Server extends events.EventEmitter {
+        constructor(connectionListener?: (socket: Socket) => void);
+        constructor(options?: { allowHalfOpen?: boolean, pauseOnConnect?: boolean }, connectionListener?: (socket: Socket) => void);
+
+        listen(port?: number, hostname?: string, backlog?: number, listeningListener?: Function): this;
+        listen(port?: number, hostname?: string, listeningListener?: Function): this;
+        listen(port?: number, backlog?: number, listeningListener?: Function): this;
+        listen(port?: number, listeningListener?: Function): this;
+        listen(path: string, backlog?: number, listeningListener?: Function): this;
+        listen(path: string, listeningListener?: Function): this;
+        listen(options: ListenOptions, listeningListener?: Function): this;
+        listen(handle: any, backlog?: number, listeningListener?: Function): this;
+        listen(handle: any, listeningListener?: Function): this;
+        close(callback?: Function): this;
+        address(): { port: number; family: string; address: string; };
+        getConnections(cb: (error: Error | null, count: number) => void): void;
+        ref(): this;
+        unref(): this;
+        maxConnections: number;
+        connections: number;
+        listening: boolean;
 
         /**
          * events.EventEmitter
@@ -2236,101 +2739,123 @@ declare module "net" {
          *   3. error
          *   4. listening
          */
-		addListener(event: string, listener: Function): this;
-		addListener(event: "close", listener: () => void): this;
-		addListener(event: "connection", listener: (socket: Socket) => void): this;
-		addListener(event: "error", listener: (err: Error) => void): this;
-		addListener(event: "listening", listener: () => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "close"): boolean;
-		emit(event: "connection", socket: Socket): boolean;
-		emit(event: "error", err: Error): boolean;
-		emit(event: "listening"): boolean;
-
-		on(event: string, listener: Function): this;
-		on(event: "close", listener: () => void): this;
-		on(event: "connection", listener: (socket: Socket) => void): this;
-		on(event: "error", listener: (err: Error) => void): this;
-		on(event: "listening", listener: () => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "close", listener: () => void): this;
-		once(event: "connection", listener: (socket: Socket) => void): this;
-		once(event: "error", listener: (err: Error) => void): this;
-		once(event: "listening", listener: () => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "close", listener: () => void): this;
-		prependListener(event: "connection", listener: (socket: Socket) => void): this;
-		prependListener(event: "error", listener: (err: Error) => void): this;
-		prependListener(event: "listening", listener: () => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "close", listener: () => void): this;
-		prependOnceListener(event: "connection", listener: (socket: Socket) => void): this;
-		prependOnceListener(event: "error", listener: (err: Error) => void): this;
-		prependOnceListener(event: "listening", listener: () => void): this;
-	}
-	export function createServer(connectionListener?: (socket: Socket) => void): Server;
-	export function createServer(options?: { allowHalfOpen?: boolean, pauseOnConnect?: boolean }, connectionListener?: (socket: Socket) => void): Server;
-	export function connect(options: { port: number, host?: string, localAddress?: string, localPort?: string, family?: number, allowHalfOpen?: boolean; }, connectionListener?: Function): Socket;
-	export function connect(port: number, host?: string, connectionListener?: Function): Socket;
-	export function connect(path: string, connectionListener?: Function): Socket;
-	export function createConnection(options: { port: number, host?: string, localAddress?: string, localPort?: string, family?: number, allowHalfOpen?: boolean; }, connectionListener?: Function): Socket;
-	export function createConnection(port: number, host?: string, connectionListener?: Function): Socket;
-	export function createConnection(path: string, connectionListener?: Function): Socket;
-	export function isIP(input: string): number;
-	export function isIPv4(input: string): boolean;
-	export function isIPv6(input: string): boolean;
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "close", listener: () => void): this;
+        addListener(event: "connection", listener: (socket: Socket) => void): this;
+        addListener(event: "error", listener: (err: Error) => void): this;
+        addListener(event: "listening", listener: () => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "close"): boolean;
+        emit(event: "connection", socket: Socket): boolean;
+        emit(event: "error", err: Error): boolean;
+        emit(event: "listening"): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "close", listener: () => void): this;
+        on(event: "connection", listener: (socket: Socket) => void): this;
+        on(event: "error", listener: (err: Error) => void): this;
+        on(event: "listening", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "close", listener: () => void): this;
+        once(event: "connection", listener: (socket: Socket) => void): this;
+        once(event: "error", listener: (err: Error) => void): this;
+        once(event: "listening", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "close", listener: () => void): this;
+        prependListener(event: "connection", listener: (socket: Socket) => void): this;
+        prependListener(event: "error", listener: (err: Error) => void): this;
+        prependListener(event: "listening", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "close", listener: () => void): this;
+        prependOnceListener(event: "connection", listener: (socket: Socket) => void): this;
+        prependOnceListener(event: "error", listener: (err: Error) => void): this;
+        prependOnceListener(event: "listening", listener: () => void): this;
+    }
+
+    export interface TcpNetConnectOpts extends TcpSocketConnectOpts, SocketConstructorOpts {
+        timeout?: number;
+    }
+
+    export interface IpcNetConnectOpts extends IpcSocketConnectOpts, SocketConstructorOpts {
+        timeout?: number;
+    }
+
+    export type NetConnectOpts = TcpNetConnectOpts | IpcNetConnectOpts;
+
+    export function createServer(connectionListener?: (socket: Socket) => void): Server;
+    export function createServer(options?: { allowHalfOpen?: boolean, pauseOnConnect?: boolean }, connectionListener?: (socket: Socket) => void): Server;
+    export function connect(options: NetConnectOpts, connectionListener?: Function): Socket;
+    export function connect(port: number, host?: string, connectionListener?: Function): Socket;
+    export function connect(path: string, connectionListener?: Function): Socket;
+    export function createConnection(options: NetConnectOpts, connectionListener?: Function): Socket;
+    export function createConnection(port: number, host?: string, connectionListener?: Function): Socket;
+    export function createConnection(path: string, connectionListener?: Function): Socket;
+    export function isIP(input: string): number;
+    export function isIPv4(input: string): boolean;
+    export function isIPv6(input: string): boolean;
 }
 
 declare module "dgram" {
-	import * as events from "events";
-
-	interface RemoteInfo {
-		address: string;
-		family: string;
-		port: number;
-	}
-
-	interface AddressInfo {
-		address: string;
-		family: string;
-		port: number;
-	}
-
-	interface BindOptions {
-		port: number;
-		address?: string;
-		exclusive?: boolean;
-	}
-
-	type SocketType = "udp4" | "udp6";
-
-	interface SocketOptions {
-		type: SocketType;
-		reuseAddr?: boolean;
-	}
-
-	export function createSocket(type: SocketType, callback?: (msg: Buffer, rinfo: RemoteInfo) => void): Socket;
-	export function createSocket(options: SocketOptions, callback?: (msg: Buffer, rinfo: RemoteInfo) => void): Socket;
-
-	export interface Socket extends events.EventEmitter {
-		send(msg: Buffer | String | any[], port: number, address: string, callback?: (error: Error, bytes: number) => void): void;
-		send(msg: Buffer | String | any[], offset: number, length: number, port: number, address: string, callback?: (error: Error, bytes: number) => void): void;
-		bind(port?: number, address?: string, callback?: () => void): void;
-		bind(options: BindOptions, callback?: Function): void;
-		close(callback?: () => void): void;
-		address(): AddressInfo;
-		setBroadcast(flag: boolean): void;
-		setTTL(ttl: number): void;
-		setMulticastTTL(ttl: number): void;
-		setMulticastLoopback(flag: boolean): void;
-		addMembership(multicastAddress: string, multicastInterface?: string): void;
-		dropMembership(multicastAddress: string, multicastInterface?: string): void;
-		ref(): this;
-		unref(): this;
+    import * as events from "events";
+    import * as dns from "dns";
+
+    interface RemoteInfo {
+        address: string;
+        family: string;
+        port: number;
+    }
+
+    interface AddressInfo {
+        address: string;
+        family: string;
+        port: number;
+    }
+
+    interface BindOptions {
+        port: number;
+        address?: string;
+        exclusive?: boolean;
+    }
+
+    type SocketType = "udp4" | "udp6";
+
+    interface SocketOptions {
+        type: SocketType;
+        reuseAddr?: boolean;
+        recvBufferSize?: number;
+        sendBufferSize?: number;
+        lookup?: (hostname: string, options: dns.LookupOneOptions, callback: (err: NodeJS.ErrnoException, address: string, family: number) => void) => void;
+    }
+
+    export function createSocket(type: SocketType, callback?: (msg: Buffer, rinfo: RemoteInfo) => void): Socket;
+    export function createSocket(options: SocketOptions, callback?: (msg: Buffer, rinfo: RemoteInfo) => void): Socket;
+
+    export class Socket extends events.EventEmitter {
+        send(msg: Buffer | String | any[], port: number, address: string, callback?: (error: Error | null, bytes: number) => void): void;
+        send(msg: Buffer | String | any[], offset: number, length: number, port: number, address: string, callback?: (error: Error | null, bytes: number) => void): void;
+        bind(port?: number, address?: string, callback?: () => void): void;
+        bind(port?: number, callback?: () => void): void;
+        bind(callback?: () => void): void;
+        bind(options: BindOptions, callback?: Function): void;
+        close(callback?: () => void): void;
+        address(): AddressInfo;
+        setBroadcast(flag: boolean): void;
+        setTTL(ttl: number): void;
+        setMulticastTTL(ttl: number): void;
+        setMulticastInterface(multicastInterface: string): void;
+        setMulticastLoopback(flag: boolean): void;
+        addMembership(multicastAddress: string, multicastInterface?: string): void;
+        dropMembership(multicastAddress: string, multicastInterface?: string): void;
+        ref(): this;
+        unref(): this;
+        setRecvBufferSize(size: number): void;
+        setSendBufferSize(size: number): void;
+        getRecvBufferSize(): number;
+        getSendBufferSize(): number;
 
         /**
          * events.EventEmitter
@@ -2338,603 +2863,1753 @@ declare module "dgram" {
          * 2. error
          * 3. listening
          * 4. message
-         **/
-		addListener(event: string, listener: Function): this;
-		addListener(event: "close", listener: () => void): this;
-		addListener(event: "error", listener: (err: Error) => void): this;
-		addListener(event: "listening", listener: () => void): this;
-		addListener(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "close"): boolean;
-		emit(event: "error", err: Error): boolean;
-		emit(event: "listening"): boolean;
-		emit(event: "message", msg: Buffer, rinfo: AddressInfo): boolean;
-
-		on(event: string, listener: Function): this;
-		on(event: "close", listener: () => void): this;
-		on(event: "error", listener: (err: Error) => void): this;
-		on(event: "listening", listener: () => void): this;
-		on(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "close", listener: () => void): this;
-		once(event: "error", listener: (err: Error) => void): this;
-		once(event: "listening", listener: () => void): this;
-		once(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "close", listener: () => void): this;
-		prependListener(event: "error", listener: (err: Error) => void): this;
-		prependListener(event: "listening", listener: () => void): this;
-		prependListener(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "close", listener: () => void): this;
-		prependOnceListener(event: "error", listener: (err: Error) => void): this;
-		prependOnceListener(event: "listening", listener: () => void): this;
-		prependOnceListener(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
-	}
+         */
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "close", listener: () => void): this;
+        addListener(event: "error", listener: (err: Error) => void): this;
+        addListener(event: "listening", listener: () => void): this;
+        addListener(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "close"): boolean;
+        emit(event: "error", err: Error): boolean;
+        emit(event: "listening"): boolean;
+        emit(event: "message", msg: Buffer, rinfo: AddressInfo): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "close", listener: () => void): this;
+        on(event: "error", listener: (err: Error) => void): this;
+        on(event: "listening", listener: () => void): this;
+        on(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "close", listener: () => void): this;
+        once(event: "error", listener: (err: Error) => void): this;
+        once(event: "listening", listener: () => void): this;
+        once(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "close", listener: () => void): this;
+        prependListener(event: "error", listener: (err: Error) => void): this;
+        prependListener(event: "listening", listener: () => void): this;
+        prependListener(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "close", listener: () => void): this;
+        prependOnceListener(event: "error", listener: (err: Error) => void): this;
+        prependOnceListener(event: "listening", listener: () => void): this;
+        prependOnceListener(event: "message", listener: (msg: Buffer, rinfo: AddressInfo) => void): this;
+    }
 }
 
 declare module "fs" {
-	import * as stream from "stream";
-	import * as events from "events";
-
-	interface Stats {
-		isFile(): boolean;
-		isDirectory(): boolean;
-		isBlockDevice(): boolean;
-		isCharacterDevice(): boolean;
-		isSymbolicLink(): boolean;
-		isFIFO(): boolean;
-		isSocket(): boolean;
-		dev: number;
-		ino: number;
-		mode: number;
-		nlink: number;
-		uid: number;
-		gid: number;
-		rdev: number;
-		size: number;
-		blksize: number;
-		blocks: number;
-		atime: Date;
-		mtime: Date;
-		ctime: Date;
-		birthtime: Date;
-	}
-
-	interface FSWatcher extends events.EventEmitter {
-		close(): void;
+    import * as stream from "stream";
+    import * as events from "events";
+    import { URL } from "url";
+
+    /**
+     * Valid types for path values in "fs".
+     */
+    export type PathLike = string | Buffer | URL;
+
+    export class Stats {
+        isFile(): boolean;
+        isDirectory(): boolean;
+        isBlockDevice(): boolean;
+        isCharacterDevice(): boolean;
+        isSymbolicLink(): boolean;
+        isFIFO(): boolean;
+        isSocket(): boolean;
+        dev: number;
+        ino: number;
+        mode: number;
+        nlink: number;
+        uid: number;
+        gid: number;
+        rdev: number;
+        size: number;
+        blksize: number;
+        blocks: number;
+        atimeMs: number;
+        mtimeMs: number;
+        ctimeMs: number;
+        birthtimeMs: number;
+        atime: Date;
+        mtime: Date;
+        ctime: Date;
+        birthtime: Date;
+    }
+
+    export interface FSWatcher extends events.EventEmitter {
+        close(): void;
 
         /**
          * events.EventEmitter
          *   1. change
          *   2. error
          */
-		addListener(event: string, listener: Function): this;
-		addListener(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
-		addListener(event: "error", listener: (error: Error) => void): this;
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
+        addListener(event: "error", listener: (error: Error) => void): this;
 
-		on(event: string, listener: Function): this;
-		on(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
-		on(event: "error", listener: (error: Error) => void): this;
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
+        on(event: "error", listener: (error: Error) => void): this;
 
-		once(event: string, listener: Function): this;
-		once(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
-		once(event: "error", listener: (error: Error) => void): this;
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
+        once(event: "error", listener: (error: Error) => void): this;
 
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
-		prependListener(event: "error", listener: (error: Error) => void): this;
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
+        prependListener(event: "error", listener: (error: Error) => void): this;
 
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
-		prependOnceListener(event: "error", listener: (error: Error) => void): this;
-	}
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "change", listener: (eventType: string, filename: string | Buffer) => void): this;
+        prependOnceListener(event: "error", listener: (error: Error) => void): this;
+    }
 
-	export interface ReadStream extends stream.Readable {
-		close(): void;
-		destroy(): void;
-		bytesRead: number;
-		path: string | Buffer;
+    export class ReadStream extends stream.Readable {
+        close(): void;
+        destroy(): void;
+        bytesRead: number;
+        path: string | Buffer;
 
         /**
          * events.EventEmitter
          *   1. open
          *   2. close
          */
-		addListener(event: string, listener: Function): this;
-		addListener(event: "open", listener: (fd: number) => void): this;
-		addListener(event: "close", listener: () => void): this;
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "open", listener: (fd: number) => void): this;
+        addListener(event: "close", listener: () => void): this;
 
-		on(event: string, listener: Function): this;
-		on(event: "open", listener: (fd: number) => void): this;
-		on(event: "close", listener: () => void): this;
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "open", listener: (fd: number) => void): this;
+        on(event: "close", listener: () => void): this;
 
-		once(event: string, listener: Function): this;
-		once(event: "open", listener: (fd: number) => void): this;
-		once(event: "close", listener: () => void): this;
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "open", listener: (fd: number) => void): this;
+        once(event: "close", listener: () => void): this;
 
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "open", listener: (fd: number) => void): this;
-		prependListener(event: "close", listener: () => void): this;
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "open", listener: (fd: number) => void): this;
+        prependListener(event: "close", listener: () => void): this;
 
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "open", listener: (fd: number) => void): this;
-		prependOnceListener(event: "close", listener: () => void): this;
-	}
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "open", listener: (fd: number) => void): this;
+        prependOnceListener(event: "close", listener: () => void): this;
+    }
 
-	export interface WriteStream extends stream.Writable {
-		close(): void;
-		bytesWritten: number;
-		path: string | Buffer;
+    export class WriteStream extends stream.Writable {
+        close(): void;
+        bytesWritten: number;
+        path: string | Buffer;
 
         /**
          * events.EventEmitter
          *   1. open
          *   2. close
          */
-		addListener(event: string, listener: Function): this;
-		addListener(event: "open", listener: (fd: number) => void): this;
-		addListener(event: "close", listener: () => void): this;
-
-		on(event: string, listener: Function): this;
-		on(event: "open", listener: (fd: number) => void): this;
-		on(event: "close", listener: () => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "open", listener: (fd: number) => void): this;
-		once(event: "close", listener: () => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "open", listener: (fd: number) => void): this;
-		prependListener(event: "close", listener: () => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "open", listener: (fd: number) => void): this;
-		prependOnceListener(event: "close", listener: () => void): this;
-	}
-
-    /**
-     * Asynchronous rename.
-     * @param oldPath
-     * @param newPath
-     * @param callback No arguments other than a possible exception are given to the completion callback.
-     */
-	export function rename(oldPath: string, newPath: string, callback?: (err?: NodeJS.ErrnoException) => void): void;
-    /**
-     * Synchronous rename
-     * @param oldPath
-     * @param newPath
-     */
-	export function renameSync(oldPath: string, newPath: string): void;
-	export function truncate(path: string | Buffer, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function truncate(path: string | Buffer, len: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function truncateSync(path: string | Buffer, len?: number): void;
-	export function ftruncate(fd: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function ftruncate(fd: number, len: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function ftruncateSync(fd: number, len?: number): void;
-	export function chown(path: string | Buffer, uid: number, gid: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function chownSync(path: string | Buffer, uid: number, gid: number): void;
-	export function fchown(fd: number, uid: number, gid: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function fchownSync(fd: number, uid: number, gid: number): void;
-	export function lchown(path: string | Buffer, uid: number, gid: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function lchownSync(path: string | Buffer, uid: number, gid: number): void;
-	export function chmod(path: string | Buffer, mode: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function chmod(path: string | Buffer, mode: string, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function chmodSync(path: string | Buffer, mode: number): void;
-	export function chmodSync(path: string | Buffer, mode: string): void;
-	export function fchmod(fd: number, mode: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function fchmod(fd: number, mode: string, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function fchmodSync(fd: number, mode: number): void;
-	export function fchmodSync(fd: number, mode: string): void;
-	export function lchmod(path: string | Buffer, mode: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function lchmod(path: string | Buffer, mode: string, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function lchmodSync(path: string | Buffer, mode: number): void;
-	export function lchmodSync(path: string | Buffer, mode: string): void;
-	export function stat(path: string | Buffer, callback?: (err: NodeJS.ErrnoException, stats: Stats) => any): void;
-	export function lstat(path: string | Buffer, callback?: (err: NodeJS.ErrnoException, stats: Stats) => any): void;
-	export function fstat(fd: number, callback?: (err: NodeJS.ErrnoException, stats: Stats) => any): void;
-	export function statSync(path: string | Buffer): Stats;
-	export function lstatSync(path: string | Buffer): Stats;
-	export function fstatSync(fd: number): Stats;
-	export function link(srcpath: string | Buffer, dstpath: string | Buffer, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function linkSync(srcpath: string | Buffer, dstpath: string | Buffer): void;
-	export function symlink(srcpath: string | Buffer, dstpath: string | Buffer, type?: string, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function symlinkSync(srcpath: string | Buffer, dstpath: string | Buffer, type?: string): void;
-	export function readlink(path: string | Buffer, callback?: (err: NodeJS.ErrnoException, linkString: string) => any): void;
-	export function readlinkSync(path: string | Buffer): string;
-	export function realpath(path: string | Buffer, callback?: (err: NodeJS.ErrnoException, resolvedPath: string) => any): void;
-	export function realpath(path: string | Buffer, cache: { [path: string]: string }, callback: (err: NodeJS.ErrnoException, resolvedPath: string) => any): void;
-	export function realpathSync(path: string | Buffer, cache?: { [path: string]: string }): string;
-    /**
-     * Asynchronous unlink - deletes the file specified in {path}
-     *
-     * @param path
-     * @param callback No arguments other than a possible exception are given to the completion callback.
-     */
-	export function unlink(path: string | Buffer, callback?: (err?: NodeJS.ErrnoException) => void): void;
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "open", listener: (fd: number) => void): this;
+        addListener(event: "close", listener: () => void): this;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "open", listener: (fd: number) => void): this;
+        on(event: "close", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "open", listener: (fd: number) => void): this;
+        once(event: "close", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "open", listener: (fd: number) => void): this;
+        prependListener(event: "close", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "open", listener: (fd: number) => void): this;
+        prependOnceListener(event: "close", listener: () => void): this;
+    }
+
     /**
-     * Synchronous unlink - deletes the file specified in {path}
-     *
-     * @param path
+     * Asynchronous rename(2) - Change the name or location of a file or directory.
+     * @param oldPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * @param newPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
      */
-	export function unlinkSync(path: string | Buffer): void;
+    export function rename(oldPath: PathLike, newPath: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace rename {
+        /**
+         * Asynchronous rename(2) - Change the name or location of a file or directory.
+         * @param oldPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * URL support is _experimental_.
+         * @param newPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * URL support is _experimental_.
+         */
+        export function __promisify__(oldPath: PathLike, newPath: PathLike): Promise<void>;
+    }
+
     /**
-     * Asynchronous rmdir - removes the directory specified in {path}
-     *
-     * @param path
-     * @param callback No arguments other than a possible exception are given to the completion callback.
+     * Synchronous rename(2) - Change the name or location of a file or directory.
+     * @param oldPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * @param newPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
      */
-	export function rmdir(path: string | Buffer, callback?: (err?: NodeJS.ErrnoException) => void): void;
+    export function renameSync(oldPath: PathLike, newPath: PathLike): void;
+
     /**
-     * Synchronous rmdir - removes the directory specified in {path}
-     *
-     * @param path
+     * Asynchronous truncate(2) - Truncate a file to a specified length.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param len If not specified, defaults to `0`.
      */
-	export function rmdirSync(path: string | Buffer): void;
+    export function truncate(path: PathLike, len: number | undefined | null, callback: (err: NodeJS.ErrnoException) => void): void;
+
     /**
-     * Asynchronous mkdir - creates the directory specified in {path}.  Parameter {mode} defaults to 0777.
-     *
-     * @param path
-     * @param callback No arguments other than a possible exception are given to the completion callback.
+     * Asynchronous truncate(2) - Truncate a file to a specified length.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
      */
-	export function mkdir(path: string | Buffer, callback?: (err?: NodeJS.ErrnoException) => void): void;
+    export function truncate(path: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace truncate {
+        /**
+         * Asynchronous truncate(2) - Truncate a file to a specified length.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param len If not specified, defaults to `0`.
+         */
+        export function __promisify__(path: PathLike, len?: number | null): Promise<void>;
+    }
+
     /**
-     * Asynchronous mkdir - creates the directory specified in {path}.  Parameter {mode} defaults to 0777.
-     *
-     * @param path
-     * @param mode
-     * @param callback No arguments other than a possible exception are given to the completion callback.
+     * Synchronous truncate(2) - Truncate a file to a specified length.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param len If not specified, defaults to `0`.
      */
-	export function mkdir(path: string | Buffer, mode: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
+    export function truncateSync(path: PathLike, len?: number | null): void;
+
     /**
-     * Asynchronous mkdir - creates the directory specified in {path}.  Parameter {mode} defaults to 0777.
-     *
-     * @param path
-     * @param mode
-     * @param callback No arguments other than a possible exception are given to the completion callback.
+     * Asynchronous ftruncate(2) - Truncate a file to a specified length.
+     * @param fd A file descriptor.
+     * @param len If not specified, defaults to `0`.
      */
-	export function mkdir(path: string | Buffer, mode: string, callback?: (err?: NodeJS.ErrnoException) => void): void;
+    export function ftruncate(fd: number, len: number | undefined | null, callback: (err: NodeJS.ErrnoException) => void): void;
+
     /**
-     * Synchronous mkdir - creates the directory specified in {path}.  Parameter {mode} defaults to 0777.
-     *
-     * @param path
-     * @param mode
-     * @param callback No arguments other than a possible exception are given to the completion callback.
+     * Asynchronous ftruncate(2) - Truncate a file to a specified length.
+     * @param fd A file descriptor.
      */
-	export function mkdirSync(path: string | Buffer, mode?: number): void;
+    export function ftruncate(fd: number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace ftruncate {
+        /**
+         * Asynchronous ftruncate(2) - Truncate a file to a specified length.
+         * @param fd A file descriptor.
+         * @param len If not specified, defaults to `0`.
+         */
+        export function __promisify__(fd: number, len?: number | null): Promise<void>;
+    }
+
     /**
-     * Synchronous mkdir - creates the directory specified in {path}.  Parameter {mode} defaults to 0777.
-     *
-     * @param path
-     * @param mode
-     * @param callback No arguments other than a possible exception are given to the completion callback.
+     * Synchronous ftruncate(2) - Truncate a file to a specified length.
+     * @param fd A file descriptor.
+     * @param len If not specified, defaults to `0`.
      */
-	export function mkdirSync(path: string | Buffer, mode?: string): void;
+    export function ftruncateSync(fd: number, len?: number | null): void;
+
     /**
-     * Asynchronous mkdtemp - Creates a unique temporary directory. Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
-     *
-     * @param prefix
-     * @param callback The created folder path is passed as a string to the callback's second parameter.
+     * Asynchronous chown(2) - Change ownership of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
      */
-	export function mkdtemp(prefix: string, callback?: (err: NodeJS.ErrnoException, folder: string) => void): void;
+    export function chown(path: PathLike, uid: number, gid: number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace chown {
+        /**
+         * Asynchronous chown(2) - Change ownership of a file.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         */
+        export function __promisify__(path: PathLike, uid: number, gid: number): Promise<void>;
+    }
+
     /**
-     * Synchronous mkdtemp - Creates a unique temporary directory. Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
-     *
-     * @param prefix
-     * @returns Returns the created folder path.
-     */
-	export function mkdtempSync(prefix: string): string;
-	export function readdir(path: string | Buffer, callback: (err: NodeJS.ErrnoException, files: string[]) => void): void;
-	export function readdir(path: string | Buffer, options: string | {}, callback: (err: NodeJS.ErrnoException, files: string[]) => void): void;
-	export function readdirSync(path: string | Buffer, options?: string | {}): string[];
-	export function close(fd: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function closeSync(fd: number): void;
-	export function open(path: string | Buffer, flags: string | number, callback: (err: NodeJS.ErrnoException, fd: number) => void): void;
-	export function open(path: string | Buffer, flags: string | number, mode: number, callback: (err: NodeJS.ErrnoException, fd: number) => void): void;
-	export function openSync(path: string | Buffer, flags: string | number, mode?: number): number;
-	export function utimes(path: string | Buffer, atime: number, mtime: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function utimes(path: string | Buffer, atime: Date, mtime: Date, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function utimesSync(path: string | Buffer, atime: number, mtime: number): void;
-	export function utimesSync(path: string | Buffer, atime: Date, mtime: Date): void;
-	export function futimes(fd: number, atime: number, mtime: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function futimes(fd: number, atime: Date, mtime: Date, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function futimesSync(fd: number, atime: number, mtime: number): void;
-	export function futimesSync(fd: number, atime: Date, mtime: Date): void;
-	export function fsync(fd: number, callback?: (err?: NodeJS.ErrnoException) => void): void;
-	export function fsyncSync(fd: number): void;
-	export function write(fd: number, buffer: Buffer, offset: number, length: number, position: number | null, callback?: (err: NodeJS.ErrnoException, written: number, buffer: Buffer) => void): void;
-	export function write(fd: number, buffer: Buffer, offset: number, length: number, callback?: (err: NodeJS.ErrnoException, written: number, buffer: Buffer) => void): void;
-	export function write(fd: number, data: any, callback?: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
-	export function write(fd: number, data: any, offset: number, callback?: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
-	export function write(fd: number, data: any, offset: number, encoding: string, callback?: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
-	export function writeSync(fd: number, buffer: Buffer, offset: number, length: number, position?: number | null): number;
-	export function writeSync(fd: number, data: any, position?: number | null, enconding?: string): number;
-	export function read(fd: number, buffer: Buffer, offset: number, length: number, position: number | null, callback?: (err: NodeJS.ErrnoException, bytesRead: number, buffer: Buffer) => void): void;
-	export function readSync(fd: number, buffer: Buffer, offset: number, length: number, position: number | null): number;
-    /**
-     * Asynchronous readFile - Asynchronously reads the entire contents of a file.
-     *
-     * @param fileName
-     * @param encoding
-     * @param callback - The callback is passed two arguments (err, data), where data is the contents of the file.
+     * Synchronous chown(2) - Change ownership of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
      */
-	export function readFile(filename: string, encoding: null, callback: (err: NodeJS.ErrnoException, data: Buffer) => void): void;
-	export function readFile(filename: string, encoding: string, callback: (err: NodeJS.ErrnoException, data: string) => void): void;
-	export function readFile(filename: string, encoding: string | null, callback: (err: NodeJS.ErrnoException, data: string | Buffer) => void): void;
+    export function chownSync(path: PathLike, uid: number, gid: number): void;
+
     /**
-     * Asynchronous readFile - Asynchronously reads the entire contents of a file.
-     *
-     * @param fileName
-     * @param options An object with optional {encoding} and {flag} properties.  If {encoding} is specified, readFile returns a string; otherwise it returns a Buffer.
-     * @param callback - The callback is passed two arguments (err, data), where data is the contents of the file.
+     * Asynchronous fchown(2) - Change ownership of a file.
+     * @param fd A file descriptor.
      */
-	export function readFile(filename: string, options: { encoding: null; flag?: string; }, callback: (err: NodeJS.ErrnoException, data: Buffer) => void): void;
-	export function readFile(filename: string, options: { encoding: string; flag?: string; }, callback: (err: NodeJS.ErrnoException, data: string) => void): void;
-	export function readFile(filename: string, options: { encoding: string | null; flag?: string; }, callback: (err: NodeJS.ErrnoException, data: string | Buffer) => void): void;
+    export function fchown(fd: number, uid: number, gid: number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace fchown {
+        /**
+         * Asynchronous fchown(2) - Change ownership of a file.
+         * @param fd A file descriptor.
+         */
+        export function __promisify__(fd: number, uid: number, gid: number): Promise<void>;
+    }
+
     /**
-     * Asynchronous readFile - Asynchronously reads the entire contents of a file.
-     *
-     * @param fileName
-     * @param options An object with optional {encoding} and {flag} properties.  If {encoding} is specified, readFile returns a string; otherwise it returns a Buffer.
-     * @param callback - The callback is passed two arguments (err, data), where data is the contents of the file.
+     * Synchronous fchown(2) - Change ownership of a file.
+     * @param fd A file descriptor.
      */
-	export function readFile(filename: string, options: { flag?: string; }, callback: (err: NodeJS.ErrnoException, data: Buffer) => void): void;
+    export function fchownSync(fd: number, uid: number, gid: number): void;
+
     /**
-     * Asynchronous readFile - Asynchronously reads the entire contents of a file.
-     *
-     * @param fileName
-     * @param callback - The callback is passed two arguments (err, data), where data is the contents of the file.
+     * Asynchronous lchown(2) - Change ownership of a file. Does not dereference symbolic links.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
      */
-	export function readFile(filename: string, callback: (err: NodeJS.ErrnoException, data: Buffer) => void): void;
+    export function lchown(path: PathLike, uid: number, gid: number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace lchown {
+        /**
+         * Asynchronous lchown(2) - Change ownership of a file. Does not dereference symbolic links.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         */
+        export function __promisify__(path: PathLike, uid: number, gid: number): Promise<void>;
+    }
+
     /**
-     * Synchronous readFile - Synchronously reads the entire contents of a file.
-     *
-     * @param fileName
-     * @param encoding
+     * Synchronous lchown(2) - Change ownership of a file. Does not dereference symbolic links.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
      */
-	export function readFileSync(filename: string, encoding: null): Buffer;
-	export function readFileSync(filename: string, encoding: string): string;
-	export function readFileSync(filename: string, encoding: string | null): string | Buffer;
+    export function lchownSync(path: PathLike, uid: number, gid: number): void;
+
     /**
-     * Synchronous readFile - Synchronously reads the entire contents of a file.
-     *
-     * @param fileName
-     * @param options An object with optional {encoding} and {flag} properties.  If {encoding} is specified, readFileSync returns a string; otherwise it returns a Buffer.
+     * Asynchronous chmod(2) - Change permissions of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
      */
-	export function readFileSync(filename: string, options: { encoding: null; flag?: string; }): Buffer;
-	export function readFileSync(filename: string, options: { encoding: string; flag?: string; }): string;
-	export function readFileSync(filename: string, options: { encoding: string | null; flag?: string; }): string | Buffer;
+    export function chmod(path: PathLike, mode: string | number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace chmod {
+        /**
+         * Asynchronous chmod(2) - Change permissions of a file.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
+         */
+        export function __promisify__(path: PathLike, mode: string | number): Promise<void>;
+    }
+
     /**
-     * Synchronous readFile - Synchronously reads the entire contents of a file.
-     *
-     * @param fileName
-     * @param options An object with optional {encoding} and {flag} properties.  If {encoding} is specified, readFileSync returns a string; otherwise it returns a Buffer.
+     * Synchronous chmod(2) - Change permissions of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
      */
-	export function readFileSync(filename: string, options?: { flag?: string; }): Buffer;
-	export function writeFile(filename: string | number, data: any, callback?: (err: NodeJS.ErrnoException) => void): void;
-	export function writeFile(filename: string | number, data: any, encoding: string, callback: (err: NodeJS.ErrnoException) => void): void;
-	export function writeFile(filename: string | number, data: any, options: { encoding?: string; mode?: number; flag?: string; }, callback?: (err: NodeJS.ErrnoException) => void): void;
-	export function writeFile(filename: string | number, data: any, options: { encoding?: string; mode?: string; flag?: string; }, callback?: (err: NodeJS.ErrnoException) => void): void;
-	export function writeFileSync(filename: string | number, data: any, encoding: string): void;
-	export function writeFileSync(filename: string | number, data: any, options?: { encoding?: string; mode?: number; flag?: string; }): void;
-	export function writeFileSync(filename: string | number, data: any, options?: { encoding?: string; mode?: string; flag?: string; }): void;
-	export function appendFile(filename: string, data: any, encoding: string, callback: (err: NodeJS.ErrnoException) => void): void;
-	export function appendFile(filename: string, data: any, options: { encoding?: string; mode?: number; flag?: string; }, callback?: (err: NodeJS.ErrnoException) => void): void;
-	export function appendFile(filename: string, data: any, options: { encoding?: string; mode?: string; flag?: string; }, callback?: (err: NodeJS.ErrnoException) => void): void;
-	export function appendFile(filename: string, data: any, callback?: (err: NodeJS.ErrnoException) => void): void;
-	export function appendFileSync(filename: string, data: any, encoding: string): void;
-	export function appendFileSync(filename: string, data: any, options?: { encoding?: string; mode?: number; flag?: string; }): void;
-	export function appendFileSync(filename: string, data: any, options?: { encoding?: string; mode?: string; flag?: string; }): void;
-	export function watchFile(filename: string, listener: (curr: Stats, prev: Stats) => void): void;
-	export function watchFile(filename: string, options: { persistent?: boolean; interval?: number; }, listener: (curr: Stats, prev: Stats) => void): void;
-	export function unwatchFile(filename: string, listener?: (curr: Stats, prev: Stats) => void): void;
-	export function watch(filename: string, listener?: (event: string, filename: string) => any): FSWatcher;
-	export function watch(filename: string, encoding: string, listener?: (event: string, filename: string | Buffer) => any): FSWatcher;
-	export function watch(filename: string, options: { persistent?: boolean; recursive?: boolean; encoding?: string }, listener?: (event: string, filename: string | Buffer) => any): FSWatcher;
-	export function exists(path: string | Buffer, callback?: (exists: boolean) => void): void;
-	export function existsSync(path: string | Buffer): boolean;
+    export function chmodSync(path: PathLike, mode: string | number): void;
 
-	export namespace constants {
-		// File Access Constants
+    /**
+     * Asynchronous fchmod(2) - Change permissions of a file.
+     * @param fd A file descriptor.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
+     */
+    export function fchmod(fd: number, mode: string | number, callback: (err: NodeJS.ErrnoException) => void): void;
 
-		/** Constant for fs.access(). File is visible to the calling process. */
-		export const F_OK: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace fchmod {
+        /**
+         * Asynchronous fchmod(2) - Change permissions of a file.
+         * @param fd A file descriptor.
+         * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
+         */
+        export function __promisify__(fd: number, mode: string | number): Promise<void>;
+    }
 
-		/** Constant for fs.access(). File can be read by the calling process. */
-		export const R_OK: number;
+    /**
+     * Synchronous fchmod(2) - Change permissions of a file.
+     * @param fd A file descriptor.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
+     */
+    export function fchmodSync(fd: number, mode: string | number): void;
 
-		/** Constant for fs.access(). File can be written by the calling process. */
-		export const W_OK: number;
+    /**
+     * Asynchronous lchmod(2) - Change permissions of a file. Does not dereference symbolic links.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
+     */
+    export function lchmod(path: PathLike, mode: string | number, callback: (err: NodeJS.ErrnoException) => void): void;
 
-		/** Constant for fs.access(). File can be executed by the calling process. */
-		export const X_OK: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace lchmod {
+        /**
+         * Asynchronous lchmod(2) - Change permissions of a file. Does not dereference symbolic links.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
+         */
+        export function __promisify__(path: PathLike, mode: string | number): Promise<void>;
+    }
 
-		// File Open Constants
+    /**
+     * Synchronous lchmod(2) - Change permissions of a file. Does not dereference symbolic links.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer.
+     */
+    export function lchmodSync(path: PathLike, mode: string | number): void;
 
-		/** Constant for fs.open(). Flag indicating to open a file for read-only access. */
-		export const O_RDONLY: number;
+    /**
+     * Asynchronous stat(2) - Get file status.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function stat(path: PathLike, callback: (err: NodeJS.ErrnoException, stats: Stats) => void): void;
 
-		/** Constant for fs.open(). Flag indicating to open a file for write-only access. */
-		export const O_WRONLY: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace stat {
+        /**
+         * Asynchronous stat(2) - Get file status.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         */
+        export function __promisify__(path: PathLike): Promise<Stats>;
+    }
 
-		/** Constant for fs.open(). Flag indicating to open a file for read-write access. */
-		export const O_RDWR: number;
+    /**
+     * Synchronous stat(2) - Get file status.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function statSync(path: PathLike): Stats;
 
-		/** Constant for fs.open(). Flag indicating to create the file if it does not already exist. */
-		export const O_CREAT: number;
+    /**
+     * Asynchronous fstat(2) - Get file status.
+     * @param fd A file descriptor.
+     */
+    export function fstat(fd: number, callback: (err: NodeJS.ErrnoException, stats: Stats) => void): void;
 
-		/** Constant for fs.open(). Flag indicating that opening a file should fail if the O_CREAT flag is set and the file already exists. */
-		export const O_EXCL: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace fstat {
+        /**
+         * Asynchronous fstat(2) - Get file status.
+         * @param fd A file descriptor.
+         */
+        export function __promisify__(fd: number): Promise<Stats>;
+    }
 
-		/** Constant for fs.open(). Flag indicating that if path identifies a terminal device, opening the path shall not cause that terminal to become the controlling terminal for the process (if the process does not already have one). */
-		export const O_NOCTTY: number;
+    /**
+     * Synchronous fstat(2) - Get file status.
+     * @param fd A file descriptor.
+     */
+    export function fstatSync(fd: number): Stats;
 
-		/** Constant for fs.open(). Flag indicating that if the file exists and is a regular file, and the file is opened successfully for write access, its length shall be truncated to zero. */
-		export const O_TRUNC: number;
+    /**
+     * Asynchronous lstat(2) - Get file status. Does not dereference symbolic links.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function lstat(path: PathLike, callback: (err: NodeJS.ErrnoException, stats: Stats) => void): void;
 
-		/** Constant for fs.open(). Flag indicating that data will be appended to the end of the file. */
-		export const O_APPEND: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace lstat {
+        /**
+         * Asynchronous lstat(2) - Get file status. Does not dereference symbolic links.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         */
+        export function __promisify__(path: PathLike): Promise<Stats>;
+    }
 
-		/** Constant for fs.open(). Flag indicating that the open should fail if the path is not a directory. */
-		export const O_DIRECTORY: number;
+    /**
+     * Synchronous lstat(2) - Get file status. Does not dereference symbolic links.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function lstatSync(path: PathLike): Stats;
 
-		/** Constant for fs.open(). Flag indicating reading accesses to the file system will no longer result in an update to the atime information associated with the file. This flag is available on Linux operating systems only. */
-		export const O_NOATIME: number;
+    /**
+     * Asynchronous link(2) - Create a new link (also known as a hard link) to an existing file.
+     * @param existingPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param newPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function link(existingPath: PathLike, newPath: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
 
-		/** Constant for fs.open(). Flag indicating that the open should fail if the path is a symbolic link. */
-		export const O_NOFOLLOW: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace link {
+        /**
+         * Asynchronous link(2) - Create a new link (also known as a hard link) to an existing file.
+         * @param existingPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param newPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+         */
+        export function link(existingPath: PathLike, newPath: PathLike): Promise<void>;
+    }
 
-		/** Constant for fs.open(). Flag indicating that the file is opened for synchronous I/O. */
-		export const O_SYNC: number;
+    /**
+     * Synchronous link(2) - Create a new link (also known as a hard link) to an existing file.
+     * @param existingPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param newPath A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function linkSync(existingPath: PathLike, newPath: PathLike): void;
 
-		/** Constant for fs.open(). Flag indicating to open the symbolic link itself rather than the resource it is pointing to. */
-		export const O_SYMLINK: number;
+    /**
+     * Asynchronous symlink(2) - Create a new symbolic link to an existing file.
+     * @param target A path to an existing file. If a URL is provided, it must use the `file:` protocol.
+     * @param path A path to the new symlink. If a URL is provided, it must use the `file:` protocol.
+     * @param type May be set to `'dir'`, `'file'`, or `'junction'` (default is `'file'`) and is only available on Windows (ignored on other platforms).
+     * When using `'junction'`, the `target` argument will automatically be normalized to an absolute path.
+     */
+    export function symlink(target: PathLike, path: PathLike, type: string | undefined | null, callback: (err: NodeJS.ErrnoException) => void): void;
 
-		/** Constant for fs.open(). When set, an attempt will be made to minimize caching effects of file I/O. */
-		export const O_DIRECT: number;
+    /**
+     * Asynchronous symlink(2) - Create a new symbolic link to an existing file.
+     * @param target A path to an existing file. If a URL is provided, it must use the `file:` protocol.
+     * @param path A path to the new symlink. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function symlink(target: PathLike, path: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
 
-		/** Constant for fs.open(). Flag indicating to open the file in nonblocking mode when possible. */
-		export const O_NONBLOCK: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace symlink {
+        /**
+         * Asynchronous symlink(2) - Create a new symbolic link to an existing file.
+         * @param target A path to an existing file. If a URL is provided, it must use the `file:` protocol.
+         * @param path A path to the new symlink. If a URL is provided, it must use the `file:` protocol.
+         * @param type May be set to `'dir'`, `'file'`, or `'junction'` (default is `'file'`) and is only available on Windows (ignored on other platforms).
+         * When using `'junction'`, the `target` argument will automatically be normalized to an absolute path.
+         */
+        export function __promisify__(target: PathLike, path: PathLike, type?: string | null): Promise<void>;
+    }
 
-		// File Type Constants
+    /**
+     * Synchronous symlink(2) - Create a new symbolic link to an existing file.
+     * @param target A path to an existing file. If a URL is provided, it must use the `file:` protocol.
+     * @param path A path to the new symlink. If a URL is provided, it must use the `file:` protocol.
+     * @param type May be set to `'dir'`, `'file'`, or `'junction'` (default is `'file'`) and is only available on Windows (ignored on other platforms).
+     * When using `'junction'`, the `target` argument will automatically be normalized to an absolute path.
+     */
+    export function symlinkSync(target: PathLike, path: PathLike, type?: string | null): void;
 
-		/** Constant for fs.Stats mode property for determining a file's type. Bit mask used to extract the file type code. */
-		export const S_IFMT: number;
+    /**
+     * Asynchronous readlink(2) - read value of a symbolic link.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readlink(path: PathLike, options: { encoding?: BufferEncoding | null } | BufferEncoding | undefined | null, callback: (err: NodeJS.ErrnoException, linkString: string) => void): void;
 
-		/** Constant for fs.Stats mode property for determining a file's type. File type constant for a regular file. */
-		export const S_IFREG: number;
+    /**
+     * Asynchronous readlink(2) - read value of a symbolic link.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readlink(path: PathLike, options: { encoding: "buffer" } | "buffer", callback: (err: NodeJS.ErrnoException, linkString: Buffer) => void): void;
 
-		/** Constant for fs.Stats mode property for determining a file's type. File type constant for a directory. */
-		export const S_IFDIR: number;
+    /**
+     * Asynchronous readlink(2) - read value of a symbolic link.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readlink(path: PathLike, options: { encoding?: string | null } | string | undefined | null, callback: (err: NodeJS.ErrnoException, linkString: string | Buffer) => void): void;
 
-		/** Constant for fs.Stats mode property for determining a file's type. File type constant for a character-oriented device file. */
-		export const S_IFCHR: number;
+    /**
+     * Asynchronous readlink(2) - read value of a symbolic link.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function readlink(path: PathLike, callback: (err: NodeJS.ErrnoException, linkString: string) => void): void;
 
-		/** Constant for fs.Stats mode property for determining a file's type. File type constant for a block-oriented device file. */
-		export const S_IFBLK: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace readlink {
+        /**
+         * Asynchronous readlink(2) - read value of a symbolic link.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options?: { encoding?: BufferEncoding | null } | BufferEncoding | null): Promise<string>;
 
-		/** Constant for fs.Stats mode property for determining a file's type. File type constant for a FIFO/pipe. */
-		export const S_IFIFO: number;
+        /**
+         * Asynchronous readlink(2) - read value of a symbolic link.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options: { encoding: "buffer" } | "buffer"): Promise<Buffer>;
 
-		/** Constant for fs.Stats mode property for determining a file's type. File type constant for a symbolic link. */
-		export const S_IFLNK: number;
+        /**
+         * Asynchronous readlink(2) - read value of a symbolic link.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options?: { encoding?: string | null } | string | null): Promise<string | Buffer>;
+    }
 
-		/** Constant for fs.Stats mode property for determining a file's type. File type constant for a socket. */
-		export const S_IFSOCK: number;
+    /**
+     * Synchronous readlink(2) - read value of a symbolic link.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readlinkSync(path: PathLike, options?: { encoding?: BufferEncoding | null } | BufferEncoding | null): string;
 
-		// File Mode Constants
+    /**
+     * Synchronous readlink(2) - read value of a symbolic link.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readlinkSync(path: PathLike, options: { encoding: "buffer" } | "buffer"): Buffer;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable, writable and executable by owner. */
-		export const S_IRWXU: number;
+    /**
+     * Synchronous readlink(2) - read value of a symbolic link.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readlinkSync(path: PathLike, options?: { encoding?: string | null } | string | null): string | Buffer;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable by owner. */
-		export const S_IRUSR: number;
+    /**
+     * Asynchronous realpath(3) - return the canonicalized absolute pathname.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function realpath(path: PathLike, options: { encoding?: BufferEncoding | null } | BufferEncoding | undefined | null, callback: (err: NodeJS.ErrnoException, resolvedPath: string) => void): void;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating writable by owner. */
-		export const S_IWUSR: number;
+    /**
+     * Asynchronous realpath(3) - return the canonicalized absolute pathname.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function realpath(path: PathLike, options: { encoding: "buffer" } | "buffer", callback: (err: NodeJS.ErrnoException, resolvedPath: Buffer) => void): void;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating executable by owner. */
-		export const S_IXUSR: number;
+    /**
+     * Asynchronous realpath(3) - return the canonicalized absolute pathname.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function realpath(path: PathLike, options: { encoding?: string | null } | string | undefined | null, callback: (err: NodeJS.ErrnoException, resolvedPath: string | Buffer) => void): void;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable, writable and executable by group. */
-		export const S_IRWXG: number;
+    /**
+     * Asynchronous realpath(3) - return the canonicalized absolute pathname.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function realpath(path: PathLike, callback: (err: NodeJS.ErrnoException, resolvedPath: string) => void): void;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable by group. */
-		export const S_IRGRP: number;
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace realpath {
+        /**
+         * Asynchronous realpath(3) - return the canonicalized absolute pathname.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options?: { encoding?: BufferEncoding | null } | BufferEncoding | null): Promise<string>;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating writable by group. */
-		export const S_IWGRP: number;
+        /**
+         * Asynchronous realpath(3) - return the canonicalized absolute pathname.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options: { encoding: "buffer" } | "buffer"): Promise<Buffer>;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating executable by group. */
-		export const S_IXGRP: number;
+        /**
+         * Asynchronous realpath(3) - return the canonicalized absolute pathname.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options?: { encoding?: string | null } | string | null): Promise<string | Buffer>;
+    }
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable, writable and executable by others. */
-		export const S_IRWXO: number;
+    /**
+     * Synchronous realpath(3) - return the canonicalized absolute pathname.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function realpathSync(path: PathLike, options?: { encoding?: BufferEncoding | null } | BufferEncoding | null): string;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable by others. */
-		export const S_IROTH: number;
+    /**
+     * Synchronous realpath(3) - return the canonicalized absolute pathname.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function realpathSync(path: PathLike, options: { encoding: "buffer" } | "buffer"): Buffer;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating writable by others. */
-		export const S_IWOTH: number;
+    /**
+     * Synchronous realpath(3) - return the canonicalized absolute pathname.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function realpathSync(path: PathLike, options?: { encoding?: string | null } | string | null): string | Buffer;
 
-		/** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating executable by others. */
-		export const S_IXOTH: number;
-	}
+    /**
+     * Asynchronous unlink(2) - delete a name and possibly the file it refers to.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function unlink(path: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
 
-	/** Tests a user's permissions for the file specified by path. */
-	export function access(path: string | Buffer, callback: (err: NodeJS.ErrnoException) => void): void;
-	export function access(path: string | Buffer, mode: number, callback: (err: NodeJS.ErrnoException) => void): void;
-	/** Synchronous version of fs.access. This throws if any accessibility checks fail, and does nothing otherwise. */
-	export function accessSync(path: string | Buffer, mode?: number): void;
-	export function createReadStream(path: string | Buffer, options?: {
-		flags?: string;
-		encoding?: string;
-		fd?: number;
-		mode?: number;
-		autoClose?: boolean;
-		start?: number;
-		end?: number;
-	}): ReadStream;
-	export function createWriteStream(path: string | Buffer, options?: {
-		flags?: string;
-		encoding?: string;
-		fd?: number;
-		mode?: number;
-		autoClose?: boolean;
-		start?: number;
-	}): WriteStream;
-	export function fdatasync(fd: number, callback: Function): void;
-	export function fdatasyncSync(fd: number): void;
-}
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace unlink {
+        /**
+         * Asynchronous unlink(2) - delete a name and possibly the file it refers to.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         */
+        export function __promisify__(path: PathLike): Promise<void>;
+    }
 
-declare module "path" {
+    /**
+     * Synchronous unlink(2) - delete a name and possibly the file it refers to.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function unlinkSync(path: PathLike): void;
 
     /**
-     * A parsed path object generated by path.parse() or consumed by path.format().
+     * Asynchronous rmdir(2) - delete a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
      */
-	export interface ParsedPath {
-        /**
-         * The root of the path such as '/' or 'c:\'
-         */
-		root: string;
-        /**
-         * The full directory path such as '/home/user/dir' or 'c:\path\dir'
-         */
-		dir: string;
-        /**
-         * The file name including extension (if any) such as 'index.html'
-         */
-		base: string;
-        /**
-         * The file extension (if any) such as '.html'
-         */
-		ext: string;
+    export function rmdir(path: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace rmdir {
         /**
-         * The file name without extension (if any) such as 'index'
+         * Asynchronous rmdir(2) - delete a directory.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
          */
-		name: string;
-	}
+        export function __promisify__(path: PathLike): Promise<void>;
+    }
 
     /**
-     * Normalize a string path, reducing '..' and '.' parts.
-     * When multiple slashes are found, they're replaced by a single one; when the path contains a trailing slash, it is preserved. On Windows backslashes are used.
-     *
-     * @param p string path to normalize.
+     * Synchronous rmdir(2) - delete a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
      */
-	export function normalize(p: string): string;
+    export function rmdirSync(path: PathLike): void;
+
     /**
-     * Join all arguments together and normalize the resulting path.
-     * Arguments must be strings. In v0.8, non-string arguments were silently ignored. In v0.10 and up, an exception is thrown.
-     *
-     * @param paths paths to join.
+     * Asynchronous mkdir(2) - create a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer. If not specified, defaults to `0o777`.
      */
-	export function join(...paths: string[]): string;
+    export function mkdir(path: PathLike, mode: number | string | undefined | null, callback: (err: NodeJS.ErrnoException) => void): void;
+
     /**
-     * The right-most parameter is considered {to}.  Other parameters are considered an array of {from}.
+     * Asynchronous mkdir(2) - create a directory with a mode of `0o777`.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function mkdir(path: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace mkdir {
+        /**
+         * Asynchronous mkdir(2) - create a directory.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param mode A file mode. If a string is passed, it is parsed as an octal integer. If not specified, defaults to `0o777`.
+         */
+        export function __promisify__(path: PathLike, mode?: number | string | null): Promise<void>;
+    }
+
+    /**
+     * Synchronous mkdir(2) - create a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer. If not specified, defaults to `0o777`.
+     */
+    export function mkdirSync(path: PathLike, mode?: number | string | null): void;
+
+    /**
+     * Asynchronously creates a unique temporary directory.
+     * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function mkdtemp(prefix: string, options: { encoding?: BufferEncoding | null } | BufferEncoding | undefined | null, callback: (err: NodeJS.ErrnoException, folder: string) => void): void;
+
+    /**
+     * Asynchronously creates a unique temporary directory.
+     * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function mkdtemp(prefix: string, options: "buffer" | { encoding: "buffer" }, callback: (err: NodeJS.ErrnoException, folder: Buffer) => void): void;
+
+    /**
+     * Asynchronously creates a unique temporary directory.
+     * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function mkdtemp(prefix: string, options: { encoding?: string | null } | string | undefined | null, callback: (err: NodeJS.ErrnoException, folder: string | Buffer) => void): void;
+
+    /**
+     * Asynchronously creates a unique temporary directory.
+     * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+     */
+    export function mkdtemp(prefix: string, callback: (err: NodeJS.ErrnoException, folder: string) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace mkdtemp {
+        /**
+         * Asynchronously creates a unique temporary directory.
+         * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(prefix: string, options?: { encoding?: BufferEncoding | null } | BufferEncoding | null): Promise<string>;
+
+        /**
+         * Asynchronously creates a unique temporary directory.
+         * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(prefix: string, options: { encoding: "buffer" } | "buffer"): Promise<Buffer>;
+
+        /**
+         * Asynchronously creates a unique temporary directory.
+         * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(prefix: string, options?: { encoding?: string | null } | string | null): Promise<string | Buffer>;
+    }
+
+    /**
+     * Synchronously creates a unique temporary directory.
+     * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function mkdtempSync(prefix: string, options?: { encoding?: BufferEncoding | null } | BufferEncoding | null): string;
+
+    /**
+     * Synchronously creates a unique temporary directory.
+     * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function mkdtempSync(prefix: string, options: { encoding: "buffer" } | "buffer"): Buffer;
+
+    /**
+     * Synchronously creates a unique temporary directory.
+     * Generates six random characters to be appended behind a required prefix to create a unique temporary directory.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function mkdtempSync(prefix: string, options?: { encoding?: string | null } | string | null): string | Buffer;
+
+    /**
+     * Asynchronous readdir(3) - read a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readdir(path: PathLike, options: { encoding: BufferEncoding | null } | BufferEncoding | undefined | null, callback: (err: NodeJS.ErrnoException, files: string[]) => void): void;
+
+    /**
+     * Asynchronous readdir(3) - read a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readdir(path: PathLike, options: { encoding: "buffer" } | "buffer", callback: (err: NodeJS.ErrnoException, files: Buffer[]) => void): void;
+
+    /**
+     * Asynchronous readdir(3) - read a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readdir(path: PathLike, options: { encoding?: string | null } | string | undefined | null, callback: (err: NodeJS.ErrnoException, files: string[] | Buffer[]) => void): void;
+
+    /**
+     * Asynchronous readdir(3) - read a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function readdir(path: PathLike, callback: (err: NodeJS.ErrnoException, files: string[]) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace readdir {
+        /**
+         * Asynchronous readdir(3) - read a directory.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options?: { encoding: BufferEncoding | null } | BufferEncoding | null): Promise<string[]>;
+
+        /**
+         * Asynchronous readdir(3) - read a directory.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options: "buffer" | { encoding: "buffer" }): Promise<Buffer[]>;
+
+        /**
+         * Asynchronous readdir(3) - read a directory.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+         */
+        export function __promisify__(path: PathLike, options?: { encoding?: string | null } | string | null): Promise<string[] | Buffer[]>;
+    }
+
+    /**
+     * Synchronous readdir(3) - read a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readdirSync(path: PathLike, options?: { encoding: BufferEncoding | null } | BufferEncoding | null): string[];
+
+    /**
+     * Synchronous readdir(3) - read a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readdirSync(path: PathLike, options: { encoding: "buffer" } | "buffer"): Buffer[];
+
+    /**
+     * Synchronous readdir(3) - read a directory.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used.
+     */
+    export function readdirSync(path: PathLike, options?: { encoding?: string | null } | string | null): string[] | Buffer[];
+
+    /**
+     * Asynchronous close(2) - close a file descriptor.
+     * @param fd A file descriptor.
+     */
+    export function close(fd: number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace close {
+        /**
+         * Asynchronous close(2) - close a file descriptor.
+         * @param fd A file descriptor.
+         */
+        export function __promisify__(fd: number): Promise<void>;
+    }
+
+    /**
+     * Synchronous close(2) - close a file descriptor.
+     * @param fd A file descriptor.
+     */
+    export function closeSync(fd: number): void;
+
+    /**
+     * Asynchronous open(2) - open and possibly create a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer. If not supplied, defaults to `0o666`.
+     */
+    export function open(path: PathLike, flags: string | number, mode: string | number | undefined | null, callback: (err: NodeJS.ErrnoException, fd: number) => void): void;
+
+    /**
+     * Asynchronous open(2) - open and possibly create a file. If the file is created, its mode will be `0o666`.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     */
+    export function open(path: PathLike, flags: string | number, callback: (err: NodeJS.ErrnoException, fd: number) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace open {
+        /**
+         * Asynchronous open(2) - open and possibly create a file.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param mode A file mode. If a string is passed, it is parsed as an octal integer. If not supplied, defaults to `0o666`.
+         */
+        export function __promisify__(path: PathLike, flags: string | number, mode?: string | number | null): Promise<number>;
+    }
+
+    /**
+     * Synchronous open(2) - open and possibly create a file, returning a file descriptor..
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param mode A file mode. If a string is passed, it is parsed as an octal integer. If not supplied, defaults to `0o666`.
+     */
+    export function openSync(path: PathLike, flags: string | number, mode?: string | number | null): number;
+
+    /**
+     * Asynchronously change file timestamps of the file referenced by the supplied path.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param atime The last access time. If a string is provided, it will be coerced to number.
+     * @param mtime The last modified time. If a string is provided, it will be coerced to number.
+     */
+    export function utimes(path: PathLike, atime: string | number | Date, mtime: string | number | Date, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace utimes {
+        /**
+         * Asynchronously change file timestamps of the file referenced by the supplied path.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * @param atime The last access time. If a string is provided, it will be coerced to number.
+         * @param mtime The last modified time. If a string is provided, it will be coerced to number.
+         */
+        export function __promisify__(path: PathLike, atime: string | number | Date, mtime: string | number | Date): Promise<void>;
+    }
+
+    /**
+     * Synchronously change file timestamps of the file referenced by the supplied path.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * @param atime The last access time. If a string is provided, it will be coerced to number.
+     * @param mtime The last modified time. If a string is provided, it will be coerced to number.
+     */
+    export function utimesSync(path: PathLike, atime: string | number | Date, mtime: string | number | Date): void;
+
+    /**
+     * Asynchronously change file timestamps of the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param atime The last access time. If a string is provided, it will be coerced to number.
+     * @param mtime The last modified time. If a string is provided, it will be coerced to number.
+     */
+    export function futimes(fd: number, atime: string | number | Date, mtime: string | number | Date, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace futimes {
+        /**
+         * Asynchronously change file timestamps of the file referenced by the supplied file descriptor.
+         * @param fd A file descriptor.
+         * @param atime The last access time. If a string is provided, it will be coerced to number.
+         * @param mtime The last modified time. If a string is provided, it will be coerced to number.
+         */
+        export function __promisify__(fd: number, atime: string | number | Date, mtime: string | number | Date): Promise<void>;
+    }
+
+    /**
+     * Synchronously change file timestamps of the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param atime The last access time. If a string is provided, it will be coerced to number.
+     * @param mtime The last modified time. If a string is provided, it will be coerced to number.
+     */
+    export function futimesSync(fd: number, atime: string | number | Date, mtime: string | number | Date): void;
+
+    /**
+     * Asynchronous fsync(2) - synchronize a file's in-core state with the underlying storage device.
+     * @param fd A file descriptor.
+     */
+    export function fsync(fd: number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace fsync {
+        /**
+         * Asynchronous fsync(2) - synchronize a file's in-core state with the underlying storage device.
+         * @param fd A file descriptor.
+         */
+        export function __promisify__(fd: number): Promise<void>;
+    }
+
+    /**
+     * Synchronous fsync(2) - synchronize a file's in-core state with the underlying storage device.
+     * @param fd A file descriptor.
+     */
+    export function fsyncSync(fd: number): void;
+
+    /**
+     * Asynchronously writes `buffer` to the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param offset The part of the buffer to be written. If not supplied, defaults to `0`.
+     * @param length The number of bytes to write. If not supplied, defaults to `buffer.length - offset`.
+     * @param position The offset from the beginning of the file where this data should be written. If not supplied, defaults to the current position.
+     */
+    export function write<TBuffer extends Buffer | Uint8Array>(fd: number, buffer: TBuffer, offset: number | undefined | null, length: number | undefined | null, position: number | undefined | null, callback: (err: NodeJS.ErrnoException, written: number, buffer: TBuffer) => void): void;
+
+    /**
+     * Asynchronously writes `buffer` to the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param offset The part of the buffer to be written. If not supplied, defaults to `0`.
+     * @param length The number of bytes to write. If not supplied, defaults to `buffer.length - offset`.
+     */
+    export function write<TBuffer extends Buffer | Uint8Array>(fd: number, buffer: TBuffer, offset: number | undefined | null, length: number | undefined | null, callback: (err: NodeJS.ErrnoException, written: number, buffer: TBuffer) => void): void;
+
+    /**
+     * Asynchronously writes `buffer` to the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param offset The part of the buffer to be written. If not supplied, defaults to `0`.
+     */
+    export function write<TBuffer extends Buffer | Uint8Array>(fd: number, buffer: TBuffer, offset: number | undefined | null, callback: (err: NodeJS.ErrnoException, written: number, buffer: TBuffer) => void): void;
+
+    /**
+     * Asynchronously writes `buffer` to the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     */
+    export function write<TBuffer extends Buffer | Uint8Array>(fd: number, buffer: TBuffer, callback: (err: NodeJS.ErrnoException, written: number, buffer: TBuffer) => void): void;
+
+    /**
+     * Asynchronously writes `string` to the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param string A string to write. If something other than a string is supplied it will be coerced to a string.
+     * @param position The offset from the beginning of the file where this data should be written. If not supplied, defaults to the current position.
+     * @param encoding The expected string encoding.
+     */
+    export function write(fd: number, string: any, position: number | undefined | null, encoding: string | undefined | null, callback: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
+
+    /**
+     * Asynchronously writes `string` to the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param string A string to write. If something other than a string is supplied it will be coerced to a string.
+     * @param position The offset from the beginning of the file where this data should be written. If not supplied, defaults to the current position.
+     */
+    export function write(fd: number, string: any, position: number | undefined | null, callback: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
+
+    /**
+     * Asynchronously writes `string` to the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param string A string to write. If something other than a string is supplied it will be coerced to a string.
+     */
+    export function write(fd: number, string: any, callback: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace write {
+        /**
+         * Asynchronously writes `buffer` to the file referenced by the supplied file descriptor.
+         * @param fd A file descriptor.
+         * @param offset The part of the buffer to be written. If not supplied, defaults to `0`.
+         * @param length The number of bytes to write. If not supplied, defaults to `buffer.length - offset`.
+         * @param position The offset from the beginning of the file where this data should be written. If not supplied, defaults to the current position.
+         */
+        export function __promisify__<TBuffer extends Buffer | Uint8Array>(fd: number, buffer?: TBuffer, offset?: number, length?: number, position?: number | null): Promise<{ bytesWritten: number, buffer: TBuffer }>;
+
+        /**
+         * Asynchronously writes `string` to the file referenced by the supplied file descriptor.
+         * @param fd A file descriptor.
+         * @param string A string to write. If something other than a string is supplied it will be coerced to a string.
+         * @param position The offset from the beginning of the file where this data should be written. If not supplied, defaults to the current position.
+         * @param encoding The expected string encoding.
+         */
+        export function __promisify__(fd: number, string: any, position?: number | null, encoding?: string | null): Promise<{ bytesWritten: number, buffer: string }>;
+    }
+
+    /**
+     * Synchronously writes `buffer` to the file referenced by the supplied file descriptor, returning the number of bytes written.
+     * @param fd A file descriptor.
+     * @param offset The part of the buffer to be written. If not supplied, defaults to `0`.
+     * @param length The number of bytes to write. If not supplied, defaults to `buffer.length - offset`.
+     * @param position The offset from the beginning of the file where this data should be written. If not supplied, defaults to the current position.
+     */
+    export function writeSync(fd: number, buffer: Buffer | Uint8Array, offset?: number | null, length?: number | null, position?: number | null): number;
+
+    /**
+     * Synchronously writes `string` to the file referenced by the supplied file descriptor, returning the number of bytes written.
+     * @param fd A file descriptor.
+     * @param string A string to write. If something other than a string is supplied it will be coerced to a string.
+     * @param position The offset from the beginning of the file where this data should be written. If not supplied, defaults to the current position.
+     * @param encoding The expected string encoding.
+     */
+    export function writeSync(fd: number, string: any, position?: number | null, encoding?: string | null): number;
+
+    /**
+     * Asynchronously reads data from the file referenced by the supplied file descriptor.
+     * @param fd A file descriptor.
+     * @param buffer The buffer that the data will be written to.
+     * @param offset The offset in the buffer at which to start writing.
+     * @param length The number of bytes to read.
+     * @param position The offset from the beginning of the file from which data should be read. If `null`, data will be read from the current position.
+     */
+    export function read<TBuffer extends Buffer | Uint8Array>(fd: number, buffer: TBuffer, offset: number, length: number, position: number | null, callback?: (err: NodeJS.ErrnoException, bytesRead: number, buffer: TBuffer) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace read {
+        /**
+         * @param fd A file descriptor.
+         * @param buffer The buffer that the data will be written to.
+         * @param offset The offset in the buffer at which to start writing.
+         * @param length The number of bytes to read.
+         * @param position The offset from the beginning of the file from which data should be read. If `null`, data will be read from the current position.
+         */
+        export function __promisify__<TBuffer extends Buffer | Uint8Array>(fd: number, buffer: TBuffer, offset: number, length: number, position: number | null): Promise<{ bytesRead: number, buffer: TBuffer }>;
+    }
+
+    /**
+     * Synchronously reads data from the file referenced by the supplied file descriptor, returning the number of bytes read.
+     * @param fd A file descriptor.
+     * @param buffer The buffer that the data will be written to.
+     * @param offset The offset in the buffer at which to start writing.
+     * @param length The number of bytes to read.
+     * @param position The offset from the beginning of the file from which data should be read. If `null`, data will be read from the current position.
+     */
+    export function readSync(fd: number, buffer: Buffer | Uint8Array, offset: number, length: number, position: number | null): number;
+
+    /**
+     * Asynchronously reads the entire contents of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param options An object that may contain an optional flag.
+     * If a flag is not provided, it defaults to `'r'`.
+     */
+    export function readFile(path: PathLike | number, options: { encoding?: null; flag?: string; } | undefined | null, callback: (err: NodeJS.ErrnoException, data: Buffer) => void): void;
+
+    /**
+     * Asynchronously reads the entire contents of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param options Either the encoding for the result, or an object that contains the encoding and an optional flag.
+     * If a flag is not provided, it defaults to `'r'`.
+     */
+    export function readFile(path: PathLike | number, options: { encoding: string; flag?: string; } | string, callback: (err: NodeJS.ErrnoException, data: string) => void): void;
+
+    /**
+     * Asynchronously reads the entire contents of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param options Either the encoding for the result, or an object that contains the encoding and an optional flag.
+     * If a flag is not provided, it defaults to `'r'`.
+     */
+    export function readFile(path: PathLike | number, options: { encoding?: string | null; flag?: string; } | string | undefined | null, callback: (err: NodeJS.ErrnoException, data: string | Buffer) => void): void;
+
+    /**
+     * Asynchronously reads the entire contents of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     */
+    export function readFile(path: PathLike | number, callback: (err: NodeJS.ErrnoException, data: Buffer) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace readFile {
+        /**
+         * Asynchronously reads the entire contents of a file.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+         * @param options An object that may contain an optional flag.
+         * If a flag is not provided, it defaults to `'r'`.
+         */
+        export function __promisify__(path: PathLike | number, options?: { encoding?: null; flag?: string; } | null): Promise<Buffer>;
+
+        /**
+         * Asynchronously reads the entire contents of a file.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * URL support is _experimental_.
+         * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+         * @param options Either the encoding for the result, or an object that contains the encoding and an optional flag.
+         * If a flag is not provided, it defaults to `'r'`.
+         */
+        export function __promisify__(path: PathLike | number, options: { encoding: string; flag?: string; } | string): Promise<string>;
+
+        /**
+         * Asynchronously reads the entire contents of a file.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * URL support is _experimental_.
+         * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+         * @param options Either the encoding for the result, or an object that contains the encoding and an optional flag.
+         * If a flag is not provided, it defaults to `'r'`.
+         */
+        export function __promisify__(path: PathLike | number, options?: { encoding?: string | null; flag?: string; } | string | null): Promise<string | Buffer>;
+    }
+
+    /**
+     * Synchronously reads the entire contents of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param options An object that may contain an optional flag. If a flag is not provided, it defaults to `'r'`.
+     */
+    export function readFileSync(path: PathLike | number, options?: { encoding?: null; flag?: string; } | null): Buffer;
+
+    /**
+     * Synchronously reads the entire contents of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param options Either the encoding for the result, or an object that contains the encoding and an optional flag.
+     * If a flag is not provided, it defaults to `'r'`.
+     */
+    export function readFileSync(path: PathLike | number, options: { encoding: string; flag?: string; } | string): string;
+
+    /**
+     * Synchronously reads the entire contents of a file.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param options Either the encoding for the result, or an object that contains the encoding and an optional flag.
+     * If a flag is not provided, it defaults to `'r'`.
+     */
+    export function readFileSync(path: PathLike | number, options?: { encoding?: string | null; flag?: string; } | string | null): string | Buffer;
+
+    /**
+     * Asynchronously writes data to a file, replacing the file if it already exists.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param data The data to write. If something other than a Buffer or Uint8Array is provided, the value is coerced to a string.
+     * @param options Either the encoding for the file, or an object optionally specifying the encoding, file mode, and flag.
+     * If `encoding` is not supplied, the default of `'utf8'` is used.
+     * If `mode` is not supplied, the default of `0o666` is used.
+     * If `mode` is a string, it is parsed as an octal integer.
+     * If `flag` is not supplied, the default of `'w'` is used.
+     */
+    export function writeFile(path: PathLike | number, data: any, options: { encoding?: string | null; mode?: number | string; flag?: string; } | string | undefined | null, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    /**
+     * Asynchronously writes data to a file, replacing the file if it already exists.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param data The data to write. If something other than a Buffer or Uint8Array is provided, the value is coerced to a string.
+     */
+    export function writeFile(path: PathLike | number, data: any, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace writeFile {
+        /**
+         * Asynchronously writes data to a file, replacing the file if it already exists.
+         * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * URL support is _experimental_.
+         * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+         * @param data The data to write. If something other than a Buffer or Uint8Array is provided, the value is coerced to a string.
+         * @param options Either the encoding for the file, or an object optionally specifying the encoding, file mode, and flag.
+         * If `encoding` is not supplied, the default of `'utf8'` is used.
+         * If `mode` is not supplied, the default of `0o666` is used.
+         * If `mode` is a string, it is parsed as an octal integer.
+         * If `flag` is not supplied, the default of `'w'` is used.
+         */
+        export function __promisify__(path: PathLike | number, data: any, options?: { encoding?: string | null; mode?: number | string; flag?: string; } | string | null): Promise<void>;
+    }
+
+    /**
+     * Synchronously writes data to a file, replacing the file if it already exists.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param data The data to write. If something other than a Buffer or Uint8Array is provided, the value is coerced to a string.
+     * @param options Either the encoding for the file, or an object optionally specifying the encoding, file mode, and flag.
+     * If `encoding` is not supplied, the default of `'utf8'` is used.
+     * If `mode` is not supplied, the default of `0o666` is used.
+     * If `mode` is a string, it is parsed as an octal integer.
+     * If `flag` is not supplied, the default of `'w'` is used.
+     */
+    export function writeFileSync(path: PathLike | number, data: any, options?: { encoding?: string | null; mode?: number | string; flag?: string; } | string | null): void;
+
+    /**
+     * Asynchronously append data to a file, creating the file if it does not exist.
+     * @param file A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param data The data to write. If something other than a Buffer or Uint8Array is provided, the value is coerced to a string.
+     * @param options Either the encoding for the file, or an object optionally specifying the encoding, file mode, and flag.
+     * If `encoding` is not supplied, the default of `'utf8'` is used.
+     * If `mode` is not supplied, the default of `0o666` is used.
+     * If `mode` is a string, it is parsed as an octal integer.
+     * If `flag` is not supplied, the default of `'a'` is used.
+     */
+    export function appendFile(file: PathLike | number, data: any, options: { encoding?: string | null, mode?: string | number, flag?: string } | string | undefined | null, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    /**
+     * Asynchronously append data to a file, creating the file if it does not exist.
+     * @param file A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param data The data to write. If something other than a Buffer or Uint8Array is provided, the value is coerced to a string.
+     */
+    export function appendFile(file: PathLike | number, data: any, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace appendFile {
+        /**
+         * Asynchronously append data to a file, creating the file if it does not exist.
+         * @param file A path to a file. If a URL is provided, it must use the `file:` protocol.
+         * URL support is _experimental_.
+         * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+         * @param data The data to write. If something other than a Buffer or Uint8Array is provided, the value is coerced to a string.
+         * @param options Either the encoding for the file, or an object optionally specifying the encoding, file mode, and flag.
+         * If `encoding` is not supplied, the default of `'utf8'` is used.
+         * If `mode` is not supplied, the default of `0o666` is used.
+         * If `mode` is a string, it is parsed as an octal integer.
+         * If `flag` is not supplied, the default of `'a'` is used.
+         */
+        export function __promisify__(file: PathLike | number, data: any, options?: { encoding?: string | null, mode?: string | number, flag?: string } | string | null): Promise<void>;
+    }
+
+    /**
+     * Synchronously append data to a file, creating the file if it does not exist.
+     * @param file A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * If a file descriptor is provided, the underlying file will _not_ be closed automatically.
+     * @param data The data to write. If something other than a Buffer or Uint8Array is provided, the value is coerced to a string.
+     * @param options Either the encoding for the file, or an object optionally specifying the encoding, file mode, and flag.
+     * If `encoding` is not supplied, the default of `'utf8'` is used.
+     * If `mode` is not supplied, the default of `0o666` is used.
+     * If `mode` is a string, it is parsed as an octal integer.
+     * If `flag` is not supplied, the default of `'a'` is used.
+     */
+    export function appendFileSync(file: PathLike | number, data: any, options?: { encoding?: string | null; mode?: number | string; flag?: string; } | string | null): void;
+
+    /**
+     * Watch for changes on `filename`. The callback `listener` will be called each time the file is accessed.
+     */
+    export function watchFile(filename: PathLike, options: { persistent?: boolean; interval?: number; } | undefined, listener: (curr: Stats, prev: Stats) => void): void;
+
+    /**
+     * Watch for changes on `filename`. The callback `listener` will be called each time the file is accessed.
+     * @param filename A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function watchFile(filename: PathLike, listener: (curr: Stats, prev: Stats) => void): void;
+
+    /**
+     * Stop watching for changes on `filename`.
+     * @param filename A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function unwatchFile(filename: PathLike, listener?: (curr: Stats, prev: Stats) => void): void;
+
+    /**
+     * Watch for changes on `filename`, where `filename` is either a file or a directory, returning an `FSWatcher`.
+     * @param filename A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * @param options Either the encoding for the filename provided to the listener, or an object optionally specifying encoding, persistent, and recursive options.
+     * If `encoding` is not supplied, the default of `'utf8'` is used.
+     * If `persistent` is not supplied, the default of `true` is used.
+     * If `recursive` is not supplied, the default of `false` is used.
+     */
+    export function watch(filename: PathLike, options: { encoding?: BufferEncoding | null, persistent?: boolean, recursive?: boolean } | BufferEncoding | undefined | null, listener?: (event: string, filename: string) => void): FSWatcher;
+
+    /**
+     * Watch for changes on `filename`, where `filename` is either a file or a directory, returning an `FSWatcher`.
+     * @param filename A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * @param options Either the encoding for the filename provided to the listener, or an object optionally specifying encoding, persistent, and recursive options.
+     * If `encoding` is not supplied, the default of `'utf8'` is used.
+     * If `persistent` is not supplied, the default of `true` is used.
+     * If `recursive` is not supplied, the default of `false` is used.
+     */
+    export function watch(filename: PathLike, options: { encoding: "buffer", persistent?: boolean, recursive?: boolean } | "buffer", listener?: (event: string, filename: Buffer) => void): FSWatcher;
+
+    /**
+     * Watch for changes on `filename`, where `filename` is either a file or a directory, returning an `FSWatcher`.
+     * @param filename A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     * @param options Either the encoding for the filename provided to the listener, or an object optionally specifying encoding, persistent, and recursive options.
+     * If `encoding` is not supplied, the default of `'utf8'` is used.
+     * If `persistent` is not supplied, the default of `true` is used.
+     * If `recursive` is not supplied, the default of `false` is used.
+     */
+    export function watch(filename: PathLike, options: { encoding?: string | null, persistent?: boolean, recursive?: boolean } | string | null, listener?: (event: string, filename: string | Buffer) => void): FSWatcher;
+
+    /**
+     * Watch for changes on `filename`, where `filename` is either a file or a directory, returning an `FSWatcher`.
+     * @param filename A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function watch(filename: PathLike, listener?: (event: string, filename: string) => any): FSWatcher;
+
+    /**
+     * Asynchronously tests whether or not the given path exists by checking with the file system.
+     * @deprecated
+     * @param path A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function exists(path: PathLike, callback: (exists: boolean) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace exists {
+        /**
+         * @param path A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+         * URL support is _experimental_.
+         */
+        function __promisify__(path: PathLike): Promise<boolean>;
+    }
+
+    /**
+     * Synchronously tests whether or not the given path exists by checking with the file system.
+     * @param path A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function existsSync(path: PathLike): boolean;
+
+    export namespace constants {
+        // File Access Constants
+
+        /** Constant for fs.access(). File is visible to the calling process. */
+        export const F_OK: number;
+
+        /** Constant for fs.access(). File can be read by the calling process. */
+        export const R_OK: number;
+
+        /** Constant for fs.access(). File can be written by the calling process. */
+        export const W_OK: number;
+
+        /** Constant for fs.access(). File can be executed by the calling process. */
+        export const X_OK: number;
+
+        // File Open Constants
+
+        /** Constant for fs.open(). Flag indicating to open a file for read-only access. */
+        export const O_RDONLY: number;
+
+        /** Constant for fs.open(). Flag indicating to open a file for write-only access. */
+        export const O_WRONLY: number;
+
+        /** Constant for fs.open(). Flag indicating to open a file for read-write access. */
+        export const O_RDWR: number;
+
+        /** Constant for fs.open(). Flag indicating to create the file if it does not already exist. */
+        export const O_CREAT: number;
+
+        /** Constant for fs.open(). Flag indicating that opening a file should fail if the O_CREAT flag is set and the file already exists. */
+        export const O_EXCL: number;
+
+        /** Constant for fs.open(). Flag indicating that if path identifies a terminal device, opening the path shall not cause that terminal to become the controlling terminal for the process (if the process does not already have one). */
+        export const O_NOCTTY: number;
+
+        /** Constant for fs.open(). Flag indicating that if the file exists and is a regular file, and the file is opened successfully for write access, its length shall be truncated to zero. */
+        export const O_TRUNC: number;
+
+        /** Constant for fs.open(). Flag indicating that data will be appended to the end of the file. */
+        export const O_APPEND: number;
+
+        /** Constant for fs.open(). Flag indicating that the open should fail if the path is not a directory. */
+        export const O_DIRECTORY: number;
+
+        /** Constant for fs.open(). Flag indicating reading accesses to the file system will no longer result in an update to the atime information associated with the file. This flag is available on Linux operating systems only. */
+        export const O_NOATIME: number;
+
+        /** Constant for fs.open(). Flag indicating that the open should fail if the path is a symbolic link. */
+        export const O_NOFOLLOW: number;
+
+        /** Constant for fs.open(). Flag indicating that the file is opened for synchronous I/O. */
+        export const O_SYNC: number;
+
+        /** Constant for fs.open(). Flag indicating that the file is opened for synchronous I/O with write operations waiting for data integrity. */
+        export const O_DSYNC: number;
+
+        /** Constant for fs.open(). Flag indicating to open the symbolic link itself rather than the resource it is pointing to. */
+        export const O_SYMLINK: number;
+
+        /** Constant for fs.open(). When set, an attempt will be made to minimize caching effects of file I/O. */
+        export const O_DIRECT: number;
+
+        /** Constant for fs.open(). Flag indicating to open the file in nonblocking mode when possible. */
+        export const O_NONBLOCK: number;
+
+        // File Type Constants
+
+        /** Constant for fs.Stats mode property for determining a file's type. Bit mask used to extract the file type code. */
+        export const S_IFMT: number;
+
+        /** Constant for fs.Stats mode property for determining a file's type. File type constant for a regular file. */
+        export const S_IFREG: number;
+
+        /** Constant for fs.Stats mode property for determining a file's type. File type constant for a directory. */
+        export const S_IFDIR: number;
+
+        /** Constant for fs.Stats mode property for determining a file's type. File type constant for a character-oriented device file. */
+        export const S_IFCHR: number;
+
+        /** Constant for fs.Stats mode property for determining a file's type. File type constant for a block-oriented device file. */
+        export const S_IFBLK: number;
+
+        /** Constant for fs.Stats mode property for determining a file's type. File type constant for a FIFO/pipe. */
+        export const S_IFIFO: number;
+
+        /** Constant for fs.Stats mode property for determining a file's type. File type constant for a symbolic link. */
+        export const S_IFLNK: number;
+
+        /** Constant for fs.Stats mode property for determining a file's type. File type constant for a socket. */
+        export const S_IFSOCK: number;
+
+        // File Mode Constants
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable, writable and executable by owner. */
+        export const S_IRWXU: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable by owner. */
+        export const S_IRUSR: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating writable by owner. */
+        export const S_IWUSR: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating executable by owner. */
+        export const S_IXUSR: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable, writable and executable by group. */
+        export const S_IRWXG: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable by group. */
+        export const S_IRGRP: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating writable by group. */
+        export const S_IWGRP: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating executable by group. */
+        export const S_IXGRP: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable, writable and executable by others. */
+        export const S_IRWXO: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating readable by others. */
+        export const S_IROTH: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating writable by others. */
+        export const S_IWOTH: number;
+
+        /** Constant for fs.Stats mode property for determining access permissions for a file. File mode indicating executable by others. */
+        export const S_IXOTH: number;
+
+        /** Constant for fs.copyFile. Flag indicating the destination file should not be overwritten if it already exists. */
+        export const COPYFILE_EXCL: number;
+    }
+
+    /**
+     * Asynchronously tests a user's permissions for the file specified by path.
+     * @param path A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function access(path: PathLike, mode: number | undefined, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    /**
+     * Asynchronously tests a user's permissions for the file specified by path.
+     * @param path A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function access(path: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace access {
+        /**
+         * Asynchronously tests a user's permissions for the file specified by path.
+         * @param path A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+         * URL support is _experimental_.
+         */
+        export function __promisify__(path: PathLike, mode?: number): Promise<void>;
+    }
+
+    /**
+     * Synchronously tests a user's permissions for the file specified by path.
+     * @param path A path to a file or directory. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function accessSync(path: PathLike, mode?: number): void;
+
+    /**
+     * Returns a new `ReadStream` object.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function createReadStream(path: PathLike, options?: string | {
+        flags?: string;
+        encoding?: string;
+        fd?: number;
+        mode?: number;
+        autoClose?: boolean;
+        start?: number;
+        end?: number;
+        highWaterMark?: number;
+    }): ReadStream;
+
+    /**
+     * Returns a new `WriteStream` object.
+     * @param path A path to a file. If a URL is provided, it must use the `file:` protocol.
+     * URL support is _experimental_.
+     */
+    export function createWriteStream(path: PathLike, options?: string | {
+        flags?: string;
+        encoding?: string;
+        fd?: number;
+        mode?: number;
+        autoClose?: boolean;
+        start?: number;
+    }): WriteStream;
+
+    /**
+     * Asynchronous fdatasync(2) - synchronize a file's in-core state with storage device.
+     * @param fd A file descriptor.
+     */
+    export function fdatasync(fd: number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace fdatasync {
+        /**
+         * Asynchronous fdatasync(2) - synchronize a file's in-core state with storage device.
+         * @param fd A file descriptor.
+         */
+        export function __promisify__(fd: number): Promise<void>;
+    }
+
+    /**
+     * Synchronous fdatasync(2) - synchronize a file's in-core state with storage device.
+     * @param fd A file descriptor.
+     */
+    export function fdatasyncSync(fd: number): void;
+
+    /**
+     * Asynchronously copies src to dest. By default, dest is overwritten if it already exists.
+     * No arguments other than a possible exception are given to the callback function.
+     * Node.js makes no guarantees about the atomicity of the copy operation.
+     * If an error occurs after the destination file has been opened for writing, Node.js will attempt
+     * to remove the destination.
+     * @param src A path to the source file.
+     * @param dest A path to the destination file.
+     */
+    export function copyFile(src: PathLike, dest: PathLike, callback: (err: NodeJS.ErrnoException) => void): void;
+    /**
+     * Asynchronously copies src to dest. By default, dest is overwritten if it already exists.
+     * No arguments other than a possible exception are given to the callback function.
+     * Node.js makes no guarantees about the atomicity of the copy operation.
+     * If an error occurs after the destination file has been opened for writing, Node.js will attempt
+     * to remove the destination.
+     * @param src A path to the source file.
+     * @param dest A path to the destination file.
+     * @param flags An integer that specifies the behavior of the copy operation. The only supported flag is fs.constants.COPYFILE_EXCL, which causes the copy operation to fail if dest already exists.
+     */
+    export function copyFile(src: PathLike, dest: PathLike, flags: number, callback: (err: NodeJS.ErrnoException) => void): void;
+
+    // NOTE: This namespace provides design-time support for util.promisify. Exported members do not exist at runtime.
+    export namespace copyFile {
+        /**
+         * Asynchronously copies src to dest. By default, dest is overwritten if it already exists.
+         * No arguments other than a possible exception are given to the callback function.
+         * Node.js makes no guarantees about the atomicity of the copy operation.
+         * If an error occurs after the destination file has been opened for writing, Node.js will attempt
+         * to remove the destination.
+         * @param src A path to the source file.
+         * @param dest A path to the destination file.
+         * @param flags An optional integer that specifies the behavior of the copy operation. The only supported flag is fs.constants.COPYFILE_EXCL, which causes the copy operation to fail if dest already exists.
+         */
+        export function __promisify__(src: PathLike, dst: PathLike, flags?: number): Promise<void>;
+    }
+
+    /**
+     * Synchronously copies src to dest. By default, dest is overwritten if it already exists.
+     * Node.js makes no guarantees about the atomicity of the copy operation.
+     * If an error occurs after the destination file has been opened for writing, Node.js will attempt
+     * to remove the destination.
+     * @param src A path to the source file.
+     * @param dest A path to the destination file.
+     * @param flags An optional integer that specifies the behavior of the copy operation. The only supported flag is fs.constants.COPYFILE_EXCL, which causes the copy operation to fail if dest already exists.
+     */
+    export function copyFileSync(src: PathLike, dest: PathLike, flags?: number): void;
+}
+
+declare module "path" {
+    /**
+     * A parsed path object generated by path.parse() or consumed by path.format().
+     */
+    export interface ParsedPath {
+        /**
+         * The root of the path such as '/' or 'c:\'
+         */
+        root: string;
+        /**
+         * The full directory path such as '/home/user/dir' or 'c:\path\dir'
+         */
+        dir: string;
+        /**
+         * The file name including extension (if any) such as 'index.html'
+         */
+        base: string;
+        /**
+         * The file extension (if any) such as '.html'
+         */
+        ext: string;
+        /**
+         * The file name without extension (if any) such as 'index'
+         */
+        name: string;
+    }
+    export interface FormatInputPathObject {
+        /**
+         * The root of the path such as '/' or 'c:\'
+         */
+        root?: string;
+        /**
+         * The full directory path such as '/home/user/dir' or 'c:\path\dir'
+         */
+        dir?: string;
+        /**
+         * The file name including extension (if any) such as 'index.html'
+         */
+        base?: string;
+        /**
+         * The file extension (if any) such as '.html'
+         */
+        ext?: string;
+        /**
+         * The file name without extension (if any) such as 'index'
+         */
+        name?: string;
+    }
+
+    /**
+     * Normalize a string path, reducing '..' and '.' parts.
+     * When multiple slashes are found, they're replaced by a single one; when the path contains a trailing slash, it is preserved. On Windows backslashes are used.
+     *
+     * @param p string path to normalize.
+     */
+    export function normalize(p: string): string;
+    /**
+     * Join all arguments together and normalize the resulting path.
+     * Arguments must be strings. In v0.8, non-string arguments were silently ignored. In v0.10 and up, an exception is thrown.
+     *
+     * @param paths paths to join.
+     */
+    export function join(...paths: string[]): string;
+    /**
+     * The right-most parameter is considered {to}.  Other parameters are considered an array of {from}.
      *
      * Starting from leftmost {from} paramter, resolves {to} to an absolute path.
      *
@@ -2942,27 +4617,24 @@ declare module "path" {
      *
      * @param pathSegments string paths to join.  Non-string arguments are ignored.
      */
-	export function resolve(...pathSegments: any[]): string;
+    export function resolve(...pathSegments: string[]): string;
     /**
      * Determines whether {path} is an absolute path. An absolute path will always resolve to the same location, regardless of the working directory.
      *
      * @param path path to test.
      */
-	export function isAbsolute(path: string): boolean;
+    export function isAbsolute(path: string): boolean;
     /**
      * Solve the relative path from {from} to {to}.
      * At times we have two absolute paths, and we need to derive the relative path from one to the other. This is actually the reverse transform of path.resolve.
-     *
-     * @param from
-     * @param to
      */
-	export function relative(from: string, to: string): string;
+    export function relative(from: string, to: string): string;
     /**
      * Return the directory name of a path. Similar to the Unix dirname command.
      *
      * @param p the path to evaluate.
      */
-	export function dirname(p: string): string;
+    export function dirname(p: string): string;
     /**
      * Return the last portion of a path. Similar to the Unix basename command.
      * Often used to extract the file name from a fully qualified path.
@@ -2970,176 +4642,177 @@ declare module "path" {
      * @param p the path to evaluate.
      * @param ext optionally, an extension to remove from the result.
      */
-	export function basename(p: string, ext?: string): string;
+    export function basename(p: string, ext?: string): string;
     /**
      * Return the extension of the path, from the last '.' to end of string in the last portion of the path.
      * If there is no '.' in the last portion of the path or the first character of it is '.', then it returns an empty string
      *
      * @param p the path to evaluate.
      */
-	export function extname(p: string): string;
+    export function extname(p: string): string;
     /**
      * The platform-specific file separator. '\\' or '/'.
      */
-	export var sep: string;
+    export var sep: string;
     /**
      * The platform-specific file delimiter. ';' or ':'.
      */
-	export var delimiter: string;
+    export var delimiter: string;
     /**
      * Returns an object from a path string - the opposite of format().
      *
      * @param pathString path to evaluate.
      */
-	export function parse(pathString: string): ParsedPath;
+    export function parse(pathString: string): ParsedPath;
     /**
      * Returns a path string from an object - the opposite of parse().
      *
      * @param pathString path to evaluate.
      */
-	export function format(pathObject: ParsedPath): string;
-
-	export module posix {
-		export function normalize(p: string): string;
-		export function join(...paths: any[]): string;
-		export function resolve(...pathSegments: any[]): string;
-		export function isAbsolute(p: string): boolean;
-		export function relative(from: string, to: string): string;
-		export function dirname(p: string): string;
-		export function basename(p: string, ext?: string): string;
-		export function extname(p: string): string;
-		export var sep: string;
-		export var delimiter: string;
-		export function parse(p: string): ParsedPath;
-		export function format(pP: ParsedPath): string;
-	}
-
-	export module win32 {
-		export function normalize(p: string): string;
-		export function join(...paths: any[]): string;
-		export function resolve(...pathSegments: any[]): string;
-		export function isAbsolute(p: string): boolean;
-		export function relative(from: string, to: string): string;
-		export function dirname(p: string): string;
-		export function basename(p: string, ext?: string): string;
-		export function extname(p: string): string;
-		export var sep: string;
-		export var delimiter: string;
-		export function parse(p: string): ParsedPath;
-		export function format(pP: ParsedPath): string;
-	}
+    export function format(pathObject: FormatInputPathObject): string;
+
+    export module posix {
+        export function normalize(p: string): string;
+        export function join(...paths: any[]): string;
+        export function resolve(...pathSegments: any[]): string;
+        export function isAbsolute(p: string): boolean;
+        export function relative(from: string, to: string): string;
+        export function dirname(p: string): string;
+        export function basename(p: string, ext?: string): string;
+        export function extname(p: string): string;
+        export var sep: string;
+        export var delimiter: string;
+        export function parse(p: string): ParsedPath;
+        export function format(pP: FormatInputPathObject): string;
+    }
+
+    export module win32 {
+        export function normalize(p: string): string;
+        export function join(...paths: any[]): string;
+        export function resolve(...pathSegments: any[]): string;
+        export function isAbsolute(p: string): boolean;
+        export function relative(from: string, to: string): string;
+        export function dirname(p: string): string;
+        export function basename(p: string, ext?: string): string;
+        export function extname(p: string): string;
+        export var sep: string;
+        export var delimiter: string;
+        export function parse(p: string): ParsedPath;
+        export function format(pP: FormatInputPathObject): string;
+    }
 }
 
 declare module "string_decoder" {
-	export interface NodeStringDecoder {
-		write(buffer: Buffer): string;
-		end(buffer?: Buffer): string;
-	}
-	export var StringDecoder: {
-		new(encoding?: string): NodeStringDecoder;
-	};
+    export interface NodeStringDecoder {
+        write(buffer: Buffer): string;
+        end(buffer?: Buffer): string;
+    }
+    export var StringDecoder: {
+        new(encoding?: string): NodeStringDecoder;
+    };
 }
 
 declare module "tls" {
-	import * as crypto from "crypto";
-	import * as net from "net";
-	import * as stream from "stream";
+    import * as crypto from "crypto";
+    import * as dns from "dns";
+    import * as net from "net";
+    import * as stream from "stream";
 
-	var CLIENT_RENEG_LIMIT: number;
-	var CLIENT_RENEG_WINDOW: number;
+    var CLIENT_RENEG_LIMIT: number;
+    var CLIENT_RENEG_WINDOW: number;
 
-	export interface Certificate {
+    export interface Certificate {
         /**
          * Country code.
          */
-		C: string;
+        C: string;
         /**
          * Street.
          */
-		ST: string;
+        ST: string;
         /**
          * Locality.
          */
-		L: string;
+        L: string;
         /**
          * Organization.
          */
-		O: string;
+        O: string;
         /**
          * Organizational unit.
          */
-		OU: string;
+        OU: string;
         /**
          * Common name.
          */
-		CN: string;
-	}
-
-	export interface PeerCertificate {
-		subject: Certificate;
-		issuer: Certificate;
-		subjectaltname: string;
-		infoAccess: { [index: string]: string[] };
-		modulus: string;
-		exponent: string;
-		valid_from: string;
-		valid_to: string;
-		fingerprint: string;
-		ext_key_usage: string[];
-		serialNumber: string;
-		raw: Buffer;
-	}
-
-	export interface DetailedPeerCertificate extends PeerCertificate {
-		issuerCertificate: DetailedPeerCertificate;
-	}
-
-	export interface CipherNameAndProtocol {
+        CN: string;
+    }
+
+    export interface PeerCertificate {
+        subject: Certificate;
+        issuer: Certificate;
+        subjectaltname: string;
+        infoAccess: { [index: string]: string[] | undefined };
+        modulus: string;
+        exponent: string;
+        valid_from: string;
+        valid_to: string;
+        fingerprint: string;
+        ext_key_usage: string[];
+        serialNumber: string;
+        raw: Buffer;
+    }
+
+    export interface DetailedPeerCertificate extends PeerCertificate {
+        issuerCertificate: DetailedPeerCertificate;
+    }
+
+    export interface CipherNameAndProtocol {
         /**
          * The cipher name.
          */
-		name: string;
+        name: string;
         /**
          * SSL/TLS protocol version.
          */
-		version: string;
-	}
+        version: string;
+    }
 
-	export class TLSSocket extends net.Socket {
+    export class TLSSocket extends net.Socket {
         /**
          * Construct a new tls.TLSSocket object from an existing TCP socket.
          */
-		constructor(socket: net.Socket, options?: {
+        constructor(socket: net.Socket, options?: {
             /**
              * An optional TLS context object from tls.createSecureContext()
              */
-			secureContext?: SecureContext,
+            secureContext?: SecureContext,
             /**
              * If true the TLS socket will be instantiated in server-mode.
              * Defaults to false.
              */
-			isServer?: boolean,
+            isServer?: boolean,
             /**
              * An optional net.Server instance.
              */
-			server?: net.Server,
+            server?: net.Server,
             /**
              * If true the server will request a certificate from clients that
              * connect and attempt to verify that certificate. Defaults to
              * false.
              */
-			requestCert?: boolean,
+            requestCert?: boolean,
             /**
              * If true the server will reject any connection which is not
              * authorized with the list of supplied CAs. This option only has an
              * effect if requestCert is true. Defaults to false.
              */
-			rejectUnauthorized?: boolean,
+            rejectUnauthorized?: boolean,
             /**
              * An array of strings or a Buffer naming possible NPN protocols.
              * (Protocols should be ordered by their priority.)
              */
-			NPNProtocols?: string[] | Buffer,
+            NPNProtocols?: string[] | Buffer[] | Uint8Array[] | Buffer | Uint8Array,
             /**
              * An array of strings or a Buffer naming possible ALPN protocols.
              * (Protocols should be ordered by their priority.) When the server
@@ -3147,7 +4820,7 @@ declare module "tls" {
              * precedence over NPN and the server does not send an NPN extension
              * to the client.
              */
-			ALPNProtocols?: string[] | Buffer,
+            ALPNProtocols?: string[] | Buffer[] | Uint8Array[] | Buffer | Uint8Array,
             /**
              * SNICallback(servername, cb) <Function> A function that will be
              * called if the client supports SNI TLS extension. Two arguments
@@ -3157,99 +4830,73 @@ declare module "tls" {
              * SecureContext.) If SNICallback wasn't provided the default callback
              * with high-level API will be used (see below).
              */
-			SNICallback?: Function,
+            SNICallback?: (servername: string, cb: (err: Error | null, ctx: SecureContext) => void) => void,
             /**
              * An optional Buffer instance containing a TLS session.
              */
-			session?: Buffer,
+            session?: Buffer,
             /**
              * If true, specifies that the OCSP status request extension will be
              * added to the client hello and an 'OCSPResponse' event will be
              * emitted on the socket before establishing a secure communication
              */
-			requestOCSP?: boolean
-		});
-        /**
-         * Returns the bound address, the address family name and port of the underlying socket as reported by
-         * the operating system.
-         * @returns {any} - An object with three properties, e.g. { port: 12346, family: 'IPv4', address: '127.0.0.1' }.
-         */
-		address(): { port: number; family: string; address: string };
+            requestOCSP?: boolean
+        });
+
         /**
          * A boolean that is true if the peer certificate was signed by one of the specified CAs, otherwise false.
          */
-		authorized: boolean;
+        authorized: boolean;
         /**
          * The reason why the peer's certificate has not been verified.
          * This property becomes available only when tlsSocket.authorized === false.
          */
-		authorizationError: Error;
+        authorizationError: Error;
         /**
          * Static boolean value, always true.
          * May be used to distinguish TLS sockets from regular ones.
          */
-		encrypted: boolean;
+        encrypted: boolean;
         /**
          * Returns an object representing the cipher name and the SSL/TLS protocol version of the current connection.
-         * @returns {CipherNameAndProtocol} - Returns an object representing the cipher name
+         * @returns Returns an object representing the cipher name
          * and the SSL/TLS protocol version of the current connection.
          */
-		getCipher(): CipherNameAndProtocol;
+        getCipher(): CipherNameAndProtocol;
         /**
          * Returns an object representing the peer's certificate.
          * The returned object has some properties corresponding to the field of the certificate.
          * If detailed argument is true the full chain with issuer property will be returned,
          * if false only the top certificate without issuer property.
          * If the peer does not provide a certificate, it returns null or an empty object.
-         * @param {boolean} detailed - If true; the full chain with issuer property will be returned.
-         * @returns {PeerCertificate | DetailedPeerCertificate} - An object representing the peer's certificate.
+         * @param detailed - If true; the full chain with issuer property will be returned.
+         * @returns An object representing the peer's certificate.
          */
-		getPeerCertificate(detailed: true): DetailedPeerCertificate;
-		getPeerCertificate(detailed?: false): PeerCertificate;
-		getPeerCertificate(detailed?: boolean): PeerCertificate | DetailedPeerCertificate;
+        getPeerCertificate(detailed: true): DetailedPeerCertificate;
+        getPeerCertificate(detailed?: false): PeerCertificate;
+        getPeerCertificate(detailed?: boolean): PeerCertificate | DetailedPeerCertificate;
         /**
          * Could be used to speed up handshake establishment when reconnecting to the server.
-         * @returns {any} - ASN.1 encoded TLS session or undefined if none was negotiated.
+         * @returns ASN.1 encoded TLS session or undefined if none was negotiated.
          */
-		getSession(): any;
+        getSession(): any;
         /**
          * NOTE: Works only with client TLS sockets.
          * Useful only for debugging, for session reuse provide session option to tls.connect().
-         * @returns {any} - TLS session ticket or undefined if none was negotiated.
-         */
-		getTLSTicket(): any;
-        /**
-         * The string representation of the local IP address.
+         * @returns TLS session ticket or undefined if none was negotiated.
          */
-		localAddress: string;
-        /**
-         * The numeric representation of the local port.
-         */
-		localPort: number;
-        /**
-         * The string representation of the remote IP address.
-         * For example, '74.125.127.100' or '2001:4860:a005::68'.
-         */
-		remoteAddress: string;
-        /**
-         * The string representation of the remote IP family. 'IPv4' or 'IPv6'.
-         */
-		remoteFamily: string;
-        /**
-         * The numeric representation of the remote port. For example, 443.
-         */
-		remotePort: number;
+        getTLSTicket(): any;
         /**
          * Initiate TLS renegotiation process.
          *
          * NOTE: Can be used to request peer's certificate after the secure connection has been established.
          * ANOTHER NOTE: When running as the server, socket will be destroyed with an error after handshakeTimeout timeout.
-         * @param {TlsOptions} options - The options may contain the following fields: rejectUnauthorized,
+         * @param options - The options may contain the following fields: rejectUnauthorized,
          * requestCert (See tls.createServer() for details).
-         * @param {Function} callback - callback(err) will be executed with null as err, once the renegotiation
+         * @param callback - callback(err) will be executed with null as err, once the renegotiation
          * is successfully completed.
          */
-		renegotiate(options: TlsOptions, callback: (err: Error) => any): any;
+        renegotiate(options: { rejectUnauthorized?: boolean, requestCert?: boolean }, callback: (err: Error | null) => void): any;
         /**
          * Set maximum TLS fragment size (default and maximum value is: 16384, minimum is: 512).
          * Smaller fragment size decreases buffering latency on the client: large fragments are buffered by
@@ -3257,97 +4904,74 @@ declare module "tls" {
          * large fragments can span multiple roundtrips, and their processing can be delayed due to packet
          * loss or reordering. However, smaller fragments add extra TLS framing bytes and CPU overhead,
          * which may decrease overall server throughput.
-         * @param {number} size - TLS fragment size (default and maximum value is: 16384, minimum is: 512).
-         * @returns {boolean} - Returns true on success, false otherwise.
+         * @param size - TLS fragment size (default and maximum value is: 16384, minimum is: 512).
+         * @returns Returns true on success, false otherwise.
          */
-		setMaxSendFragment(size: number): boolean;
+        setMaxSendFragment(size: number): boolean;
 
         /**
          * events.EventEmitter
          * 1. OCSPResponse
          * 2. secureConnect
-         **/
-		addListener(event: string, listener: Function): this;
-		addListener(event: "OCSPResponse", listener: (response: Buffer) => void): this;
-		addListener(event: "secureConnect", listener: () => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "OCSPResponse", response: Buffer): boolean;
-		emit(event: "secureConnect"): boolean;
-
-		on(event: string, listener: Function): this;
-		on(event: "OCSPResponse", listener: (response: Buffer) => void): this;
-		on(event: "secureConnect", listener: () => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "OCSPResponse", listener: (response: Buffer) => void): this;
-		once(event: "secureConnect", listener: () => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "OCSPResponse", listener: (response: Buffer) => void): this;
-		prependListener(event: "secureConnect", listener: () => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "OCSPResponse", listener: (response: Buffer) => void): this;
-		prependOnceListener(event: "secureConnect", listener: () => void): this;
-	}
-
-	export interface TlsOptions {
-		host?: string;
-		port?: number;
-		pfx?: string | Buffer[];
-		key?: string | string[] | Buffer | any[];
-		passphrase?: string;
-		cert?: string | string[] | Buffer | Buffer[];
-		ca?: string | string[] | Buffer | Buffer[];
-		crl?: string | string[];
-		ciphers?: string;
-		honorCipherOrder?: boolean;
-		requestCert?: boolean;
-		rejectUnauthorized?: boolean;
-		NPNProtocols?: string[] | Buffer;
-		SNICallback?: (servername: string, cb: (err: Error, ctx: SecureContext) => any) => any;
-		ecdhCurve?: string;
-		dhparam?: string | Buffer;
-		handshakeTimeout?: number;
-		ALPNProtocols?: string[] | Buffer;
-		sessionTimeout?: number;
-		ticketKeys?: any;
-		sessionIdContext?: string;
-		secureProtocol?: string;
-	}
-
-	export interface ConnectionOptions {
-		host?: string;
-		port?: number;
-		socket?: net.Socket;
-		pfx?: string | Buffer
-		key?: string | string[] | Buffer | Buffer[];
-		passphrase?: string;
-		cert?: string | string[] | Buffer | Buffer[];
-		ca?: string | Buffer | (string | Buffer)[];
-		rejectUnauthorized?: boolean;
-		NPNProtocols?: (string | Buffer)[];
-		servername?: string;
-		path?: string;
-		ALPNProtocols?: (string | Buffer)[];
-		checkServerIdentity?: (servername: string, cert: string | Buffer | (string | Buffer)[]) => any;
-		secureProtocol?: string;
-		secureContext?: Object;
-		session?: Buffer;
-		minDHSize?: number;
-	}
-
-	export interface Server extends net.Server {
-		close(callback?: Function): Server;
-		address(): { port: number; family: string; address: string; };
-		addContext(hostName: string, credentials: {
-			key: string;
-			cert: string;
-			ca: string;
-		}): void;
-		maxConnections: number;
-		connections: number;
+         */
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "OCSPResponse", listener: (response: Buffer) => void): this;
+        addListener(event: "secureConnect", listener: () => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "OCSPResponse", response: Buffer): boolean;
+        emit(event: "secureConnect"): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "OCSPResponse", listener: (response: Buffer) => void): this;
+        on(event: "secureConnect", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "OCSPResponse", listener: (response: Buffer) => void): this;
+        once(event: "secureConnect", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "OCSPResponse", listener: (response: Buffer) => void): this;
+        prependListener(event: "secureConnect", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "OCSPResponse", listener: (response: Buffer) => void): this;
+        prependOnceListener(event: "secureConnect", listener: () => void): this;
+    }
+
+    export interface TlsOptions extends SecureContextOptions {
+        handshakeTimeout?: number;
+        requestCert?: boolean;
+        rejectUnauthorized?: boolean;
+        NPNProtocols?: string[] | Buffer[] | Uint8Array[] | Buffer | Uint8Array;
+        ALPNProtocols?: string[] | Buffer[] | Uint8Array[] | Buffer | Uint8Array;
+        SNICallback?: (servername: string, cb: (err: Error | null, ctx: SecureContext) => void) => void;
+        sessionTimeout?: number;
+        ticketKeys?: Buffer;
+    }
+
+    export interface ConnectionOptions extends SecureContextOptions {
+        host?: string;
+        port?: number;
+        path?: string; // Creates unix socket connection to path. If this option is specified, `host` and `port` are ignored.
+        socket?: net.Socket; // Establish secure connection on a given socket rather than creating a new socket
+        rejectUnauthorized?: boolean; // Defaults to true
+        NPNProtocols?: string[] | Buffer[] | Uint8Array[] | Buffer | Uint8Array;
+        ALPNProtocols?: string[] | Buffer[] | Uint8Array[] | Buffer | Uint8Array;
+        checkServerIdentity?: typeof checkServerIdentity;
+        servername?: string; // SNI TLS Extension
+        session?: Buffer;
+        minDHSize?: number;
+        secureContext?: SecureContext; // If not provided, the entire ConnectionOptions object will be passed to tls.createSecureContext()
+        lookup?: net.LookupFunction;
+    }
+
+    export class Server extends net.Server {
+        addContext(hostName: string, credentials: {
+            key: string;
+            cert: string;
+            ca: string;
+        }): void;
 
         /**
          * events.EventEmitter
@@ -3356,1022 +4980,2162 @@ declare module "tls" {
          * 3. OCSPRequest
          * 4. resumeSession
          * 5. secureConnection
-         **/
-		addListener(event: string, listener: Function): this;
-		addListener(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
-		addListener(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
-		addListener(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
-		addListener(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
-		addListener(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
-
-		emit(event: string | symbol, ...args: any[]): boolean;
-		emit(event: "tlsClientError", err: Error, tlsSocket: TLSSocket): boolean;
-		emit(event: "newSession", sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void): boolean;
-		emit(event: "OCSPRequest", certificate: Buffer, issuer: Buffer, callback: Function): boolean;
-		emit(event: "resumeSession", sessionId: any, callback: (err: Error, sessionData: any) => void): boolean;
-		emit(event: "secureConnection", tlsSocket: TLSSocket): boolean;
-
-		on(event: string, listener: Function): this;
-		on(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
-		on(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
-		on(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
-		on(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
-		on(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
-
-		once(event: string, listener: Function): this;
-		once(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
-		once(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
-		once(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
-		once(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
-		once(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
-
-		prependListener(event: string, listener: Function): this;
-		prependListener(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
-		prependListener(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
-		prependListener(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
-		prependListener(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
-		prependListener(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
-
-		prependOnceListener(event: string, listener: Function): this;
-		prependOnceListener(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
-		prependOnceListener(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
-		prependOnceListener(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
-		prependOnceListener(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
-		prependOnceListener(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
-	}
-
-	export interface ClearTextStream extends stream.Duplex {
-		authorized: boolean;
-		authorizationError: Error;
-		getPeerCertificate(): any;
-		getCipher: {
-			name: string;
-			version: string;
-		};
-		address: {
-			port: number;
-			family: string;
-			address: string;
-		};
-		remoteAddress: string;
-		remotePort: number;
-	}
-
-	export interface SecurePair {
-		encrypted: any;
-		cleartext: any;
-	}
-
-	export interface SecureContextOptions {
-		pfx?: string | Buffer;
-		key?: string | Buffer;
-		passphrase?: string;
-		cert?: string | Buffer;
-		ca?: string | Buffer;
-		crl?: string | string[]
-		ciphers?: string;
-		honorCipherOrder?: boolean;
-	}
-
-	export interface SecureContext {
-		context: any;
-	}
-
-	export function createServer(options: TlsOptions, secureConnectionListener?: (socket: TLSSocket) => void): Server;
-	export function connect(options: ConnectionOptions, secureConnectionListener?: () => void): TLSSocket;
-	export function connect(port: number, host?: string, options?: ConnectionOptions, secureConnectListener?: () => void): TLSSocket;
-	export function connect(port: number, options?: ConnectionOptions, secureConnectListener?: () => void): TLSSocket;
-	export function createSecurePair(credentials?: crypto.Credentials, isServer?: boolean, requestCert?: boolean, rejectUnauthorized?: boolean): SecurePair;
-	export function createSecureContext(details: SecureContextOptions): SecureContext;
+         */
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
+        addListener(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
+        addListener(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
+        addListener(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
+        addListener(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "tlsClientError", err: Error, tlsSocket: TLSSocket): boolean;
+        emit(event: "newSession", sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void): boolean;
+        emit(event: "OCSPRequest", certificate: Buffer, issuer: Buffer, callback: Function): boolean;
+        emit(event: "resumeSession", sessionId: any, callback: (err: Error, sessionData: any) => void): boolean;
+        emit(event: "secureConnection", tlsSocket: TLSSocket): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
+        on(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
+        on(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
+        on(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
+        on(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
+        once(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
+        once(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
+        once(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
+        once(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
+        prependListener(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
+        prependListener(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
+        prependListener(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
+        prependListener(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "tlsClientError", listener: (err: Error, tlsSocket: TLSSocket) => void): this;
+        prependOnceListener(event: "newSession", listener: (sessionId: any, sessionData: any, callback: (err: Error, resp: Buffer) => void) => void): this;
+        prependOnceListener(event: "OCSPRequest", listener: (certificate: Buffer, issuer: Buffer, callback: Function) => void): this;
+        prependOnceListener(event: "resumeSession", listener: (sessionId: any, callback: (err: Error, sessionData: any) => void) => void): this;
+        prependOnceListener(event: "secureConnection", listener: (tlsSocket: TLSSocket) => void): this;
+    }
+
+    export interface ClearTextStream extends stream.Duplex {
+        authorized: boolean;
+        authorizationError: Error;
+        getPeerCertificate(): any;
+        getCipher: {
+            name: string;
+            version: string;
+        };
+        address: {
+            port: number;
+            family: string;
+            address: string;
+        };
+        remoteAddress: string;
+        remotePort: number;
+    }
+
+    export interface SecurePair {
+        encrypted: any;
+        cleartext: any;
+    }
+
+    export interface SecureContextOptions {
+        pfx?: string | Buffer | Array<string | Buffer | Object>;
+        key?: string | Buffer | Array<Buffer | Object>;
+        passphrase?: string;
+        cert?: string | Buffer | Array<string | Buffer>;
+        ca?: string | Buffer | Array<string | Buffer>;
+        ciphers?: string;
+        honorCipherOrder?: boolean;
+        ecdhCurve?: string;
+        crl?: string | Buffer | Array<string | Buffer>;
+        dhparam?: string | Buffer;
+        secureOptions?: number; // Value is a numeric bitmask of the `SSL_OP_*` options
+        secureProtocol?: string; // SSL Method, e.g. SSLv23_method
+        sessionIdContext?: string;
+    }
+
+    export interface SecureContext {
+        context: any;
+    }
+
+    /*
+     * Verifies the certificate `cert` is issued to host `host`.
+     * @host The hostname to verify the certificate against
+     * @cert PeerCertificate representing the peer's certificate
+     *
+     * Returns Error object, populating it with the reason, host and cert on failure.  On success, returns undefined.
+     */
+    export function checkServerIdentity(host: string, cert: PeerCertificate): Error | undefined;
+    export function createServer(options: TlsOptions, secureConnectionListener?: (socket: TLSSocket) => void): Server;
+    export function connect(options: ConnectionOptions, secureConnectionListener?: () => void): TLSSocket;
+    export function connect(port: number, host?: string, options?: ConnectionOptions, secureConnectListener?: () => void): TLSSocket;
+    export function connect(port: number, options?: ConnectionOptions, secureConnectListener?: () => void): TLSSocket;
+    export function createSecurePair(credentials?: crypto.Credentials, isServer?: boolean, requestCert?: boolean, rejectUnauthorized?: boolean): SecurePair;
+    export function createSecureContext(details: SecureContextOptions): SecureContext;
+    export function getCiphers(): string[];
+
+    export var DEFAULT_ECDH_CURVE: string;
 }
 
 declare module "crypto" {
-	export interface Certificate {
-		exportChallenge(spkac: string | Buffer): Buffer;
-		exportPublicKey(spkac: string | Buffer): Buffer;
-		verifySpkac(spkac: Buffer): boolean;
-	}
-	export var Certificate: {
-		new(): Certificate;
-		(): Certificate;
-	}
-
-	export var fips: boolean;
-
-	export interface CredentialDetails {
-		pfx: string;
-		key: string;
-		passphrase: string;
-		cert: string;
-		ca: string | string[];
-		crl: string | string[];
-		ciphers: string;
-	}
-	export interface Credentials { context?: any; }
-	export function createCredentials(details: CredentialDetails): Credentials;
-	export function createHash(algorithm: string): Hash;
-	export function createHmac(algorithm: string, key: string | Buffer): Hmac;
-
-	type Utf8AsciiLatin1Encoding = "utf8" | "ascii" | "latin1";
-	type HexBase64Latin1Encoding = "latin1" | "hex" | "base64";
-	type Utf8AsciiBinaryEncoding = "utf8" | "ascii" | "binary";
-	type HexBase64BinaryEncoding = "binary" | "base64" | "hex";
-	type ECDHKeyFormat = "compressed" | "uncompressed" | "hybrid";
-
-	export interface Hash extends NodeJS.ReadWriteStream {
-		update(data: string | Buffer): Hash;
-		update(data: string | Buffer, input_encoding: Utf8AsciiLatin1Encoding): Hash;
-		digest(): Buffer;
-		digest(encoding: HexBase64Latin1Encoding): string;
-	}
-	export interface Hmac extends NodeJS.ReadWriteStream {
-		update(data: string | Buffer): Hmac;
-		update(data: string | Buffer, input_encoding: Utf8AsciiLatin1Encoding): Hmac;
-		digest(): Buffer;
-		digest(encoding: HexBase64Latin1Encoding): string;
-	}
-	export function createCipher(algorithm: string, password: any): Cipher;
-	export function createCipheriv(algorithm: string, key: any, iv: any): Cipher;
-	export interface Cipher extends NodeJS.ReadWriteStream {
-		update(data: Buffer): Buffer;
-		update(data: string, input_encoding: Utf8AsciiBinaryEncoding): Buffer;
-		update(data: Buffer, input_encoding: any, output_encoding: HexBase64BinaryEncoding): string;
-		update(data: string, input_encoding: Utf8AsciiBinaryEncoding, output_encoding: HexBase64BinaryEncoding): string;
-		final(): Buffer;
-		final(output_encoding: string): string;
-		setAutoPadding(auto_padding?: boolean): void;
-		getAuthTag(): Buffer;
-		setAAD(buffer: Buffer): void;
-	}
-	export function createDecipher(algorithm: string, password: any): Decipher;
-	export function createDecipheriv(algorithm: string, key: any, iv: any): Decipher;
-	export interface Decipher extends NodeJS.ReadWriteStream {
-		update(data: Buffer): Buffer;
-		update(data: string, input_encoding: HexBase64BinaryEncoding): Buffer;
-		update(data: Buffer, input_encoding: any, output_encoding: Utf8AsciiBinaryEncoding): string;
-		update(data: string, input_encoding: HexBase64BinaryEncoding, output_encoding: Utf8AsciiBinaryEncoding): string;
-		final(): Buffer;
-		final(output_encoding: string): string;
-		setAutoPadding(auto_padding?: boolean): void;
-		setAuthTag(tag: Buffer): void;
-		setAAD(buffer: Buffer): void;
-	}
-	export function createSign(algorithm: string): Signer;
-	export interface Signer extends NodeJS.WritableStream {
-		update(data: string | Buffer): Signer;
-		update(data: string | Buffer, input_encoding: Utf8AsciiLatin1Encoding): Signer;
-		sign(private_key: string | { key: string; passphrase: string }): Buffer;
-		sign(private_key: string | { key: string; passphrase: string }, output_format: HexBase64Latin1Encoding): string;
-	}
-	export function createVerify(algorith: string): Verify;
-	export interface Verify extends NodeJS.WritableStream {
-		update(data: string | Buffer): Verify;
-		update(data: string | Buffer, input_encoding: Utf8AsciiLatin1Encoding): Verify;
-		verify(object: string, signature: Buffer): boolean;
-		verify(object: string, signature: string, signature_format: HexBase64Latin1Encoding): boolean;
-	}
-	export function createDiffieHellman(prime_length: number, generator?: number): DiffieHellman;
-	export function createDiffieHellman(prime: Buffer): DiffieHellman;
-	export function createDiffieHellman(prime: string, prime_encoding: HexBase64Latin1Encoding): DiffieHellman;
-	export function createDiffieHellman(prime: string, prime_encoding: HexBase64Latin1Encoding, generator: number | Buffer): DiffieHellman;
-	export function createDiffieHellman(prime: string, prime_encoding: HexBase64Latin1Encoding, generator: string, generator_encoding: HexBase64Latin1Encoding): DiffieHellman;
-	export interface DiffieHellman {
-		generateKeys(): Buffer;
-		generateKeys(encoding: HexBase64Latin1Encoding): string;
-		computeSecret(other_public_key: Buffer): Buffer;
-		computeSecret(other_public_key: string, input_encoding: HexBase64Latin1Encoding): Buffer;
-		computeSecret(other_public_key: string, input_encoding: HexBase64Latin1Encoding, output_encoding: HexBase64Latin1Encoding): string;
-		getPrime(): Buffer;
-		getPrime(encoding: HexBase64Latin1Encoding): string;
-		getGenerator(): Buffer;
-		getGenerator(encoding: HexBase64Latin1Encoding): string;
-		getPublicKey(): Buffer;
-		getPublicKey(encoding: HexBase64Latin1Encoding): string;
-		getPrivateKey(): Buffer;
-		getPrivateKey(encoding: HexBase64Latin1Encoding): string;
-		setPublicKey(public_key: Buffer): void;
-		setPublicKey(public_key: string, encoding: string): void;
-		setPrivateKey(private_key: Buffer): void;
-		setPrivateKey(private_key: string, encoding: string): void;
-		verifyError: number;
-	}
-	export function getDiffieHellman(group_name: string): DiffieHellman;
-	export function pbkdf2(password: string | Buffer, salt: string | Buffer, iterations: number, keylen: number, digest: string, callback: (err: Error, derivedKey: Buffer) => any): void;
-	export function pbkdf2Sync(password: string | Buffer, salt: string | Buffer, iterations: number, keylen: number, digest: string): Buffer;
-	export function randomBytes(size: number): Buffer;
-	export function randomBytes(size: number, callback: (err: Error, buf: Buffer) => void): void;
-	export function pseudoRandomBytes(size: number): Buffer;
-	export function pseudoRandomBytes(size: number, callback: (err: Error, buf: Buffer) => void): void;
-	export function randomFillSync(buffer: Buffer | Uint8Array, offset?: number, size?: number): Buffer;
-	export function randomFill(buffer: Buffer, callback: (err: Error, buf: Buffer) => void): void;
-	export function randomFill(buffer: Uint8Array, callback: (err: Error, buf: Uint8Array) => void): void;
-	export function randomFill(buffer: Buffer, offset: number, callback: (err: Error, buf: Buffer) => void): void;
-	export function randomFill(buffer: Uint8Array, offset: number, callback: (err: Error, buf: Uint8Array) => void): void;
-	export function randomFill(buffer: Buffer, offset: number, size: number, callback: (err: Error, buf: Buffer) => void): void;
-	export function randomFill(buffer: Uint8Array, offset: number, size: number, callback: (err: Error, buf: Uint8Array) => void): void;
-	export interface RsaPublicKey {
-		key: string;
-		padding?: number;
-	}
-	export interface RsaPrivateKey {
-		key: string;
-		passphrase?: string,
-		padding?: number;
-	}
-	export function publicEncrypt(public_key: string | RsaPublicKey, buffer: Buffer): Buffer
-	export function privateDecrypt(private_key: string | RsaPrivateKey, buffer: Buffer): Buffer
-	export function privateEncrypt(private_key: string | RsaPrivateKey, buffer: Buffer): Buffer
-	export function publicDecrypt(public_key: string | RsaPublicKey, buffer: Buffer): Buffer
-	export function getCiphers(): string[];
-	export function getCurves(): string[];
-	export function getHashes(): string[];
-	export interface ECDH {
-		generateKeys(): Buffer;
-		generateKeys(encoding: HexBase64Latin1Encoding): string;
-		generateKeys(encoding: HexBase64Latin1Encoding, format: ECDHKeyFormat): string;
-		computeSecret(other_public_key: Buffer): Buffer;
-		computeSecret(other_public_key: string, input_encoding: HexBase64Latin1Encoding): Buffer;
-		computeSecret(other_public_key: string, input_encoding: HexBase64Latin1Encoding, output_encoding: HexBase64Latin1Encoding): string;
-		getPrivateKey(): Buffer;
-		getPrivateKey(encoding: HexBase64Latin1Encoding): string;
-		getPublicKey(): Buffer;
-		getPublicKey(encoding: HexBase64Latin1Encoding): string;
-		getPublicKey(encoding: HexBase64Latin1Encoding, format: ECDHKeyFormat): string;
-		setPrivateKey(private_key: Buffer): void;
-		setPrivateKey(private_key: string, encoding: HexBase64Latin1Encoding): void;
-	}
-	export function createECDH(curve_name: string): ECDH;
-	export function timingSafeEqual(a: Buffer, b: Buffer): boolean;
-	export var DEFAULT_ENCODING: string;
+    export interface Certificate {
+        exportChallenge(spkac: string | Buffer): Buffer;
+        exportPublicKey(spkac: string | Buffer): Buffer;
+        verifySpkac(spkac: Buffer): boolean;
+    }
+    export var Certificate: {
+        new(): Certificate;
+        (): Certificate;
+    };
+
+    export var fips: boolean;
+
+    export interface CredentialDetails {
+        pfx: string;
+        key: string;
+        passphrase: string;
+        cert: string;
+        ca: string | string[];
+        crl: string | string[];
+        ciphers: string;
+    }
+    export interface Credentials { context?: any; }
+    export function createCredentials(details: CredentialDetails): Credentials;
+    export function createHash(algorithm: string): Hash;
+    export function createHmac(algorithm: string, key: string | Buffer): Hmac;
+
+    type Utf8AsciiLatin1Encoding = "utf8" | "ascii" | "latin1";
+    type HexBase64Latin1Encoding = "latin1" | "hex" | "base64";
+    type Utf8AsciiBinaryEncoding = "utf8" | "ascii" | "binary";
+    type HexBase64BinaryEncoding = "binary" | "base64" | "hex";
+    type ECDHKeyFormat = "compressed" | "uncompressed" | "hybrid";
+
+    export interface Hash extends NodeJS.ReadWriteStream {
+        update(data: string | Buffer | DataView): Hash;
+        update(data: string | Buffer | DataView, input_encoding: Utf8AsciiLatin1Encoding): Hash;
+        digest(): Buffer;
+        digest(encoding: HexBase64Latin1Encoding): string;
+    }
+    export interface Hmac extends NodeJS.ReadWriteStream {
+        update(data: string | Buffer | DataView): Hmac;
+        update(data: string | Buffer | DataView, input_encoding: Utf8AsciiLatin1Encoding): Hmac;
+        digest(): Buffer;
+        digest(encoding: HexBase64Latin1Encoding): string;
+    }
+    export function createCipher(algorithm: string, password: any): Cipher;
+    export function createCipheriv(algorithm: string, key: any, iv: any): Cipher;
+    export interface Cipher extends NodeJS.ReadWriteStream {
+        update(data: Buffer | DataView): Buffer;
+        update(data: string, input_encoding: Utf8AsciiBinaryEncoding): Buffer;
+        update(data: Buffer | DataView, input_encoding: any, output_encoding: HexBase64BinaryEncoding): string;
+        update(data: string, input_encoding: Utf8AsciiBinaryEncoding, output_encoding: HexBase64BinaryEncoding): string;
+        final(): Buffer;
+        final(output_encoding: string): string;
+        setAutoPadding(auto_padding?: boolean): void;
+        getAuthTag(): Buffer;
+        setAAD(buffer: Buffer): void;
+    }
+    export function createDecipher(algorithm: string, password: any): Decipher;
+    export function createDecipheriv(algorithm: string, key: any, iv: any): Decipher;
+    export interface Decipher extends NodeJS.ReadWriteStream {
+        update(data: Buffer | DataView): Buffer;
+        update(data: string, input_encoding: HexBase64BinaryEncoding): Buffer;
+        update(data: Buffer | DataView, input_encoding: any, output_encoding: Utf8AsciiBinaryEncoding): string;
+        update(data: string, input_encoding: HexBase64BinaryEncoding, output_encoding: Utf8AsciiBinaryEncoding): string;
+        final(): Buffer;
+        final(output_encoding: string): string;
+        setAutoPadding(auto_padding?: boolean): void;
+        setAuthTag(tag: Buffer): void;
+        setAAD(buffer: Buffer): void;
+    }
+    export function createSign(algorithm: string): Signer;
+    export interface Signer extends NodeJS.WritableStream {
+        update(data: string | Buffer | DataView): Signer;
+        update(data: string | Buffer | DataView, input_encoding: Utf8AsciiLatin1Encoding): Signer;
+        sign(private_key: string | { key: string; passphrase: string }): Buffer;
+        sign(private_key: string | { key: string; passphrase: string }, output_format: HexBase64Latin1Encoding): string;
+    }
+    export function createVerify(algorith: string): Verify;
+    export interface Verify extends NodeJS.WritableStream {
+        update(data: string | Buffer | DataView): Verify;
+        update(data: string | Buffer | DataView, input_encoding: Utf8AsciiLatin1Encoding): Verify;
+        verify(object: string | Object, signature: Buffer | DataView): boolean;
+        verify(object: string | Object, signature: string, signature_format: HexBase64Latin1Encoding): boolean;
+        // https://nodejs.org/api/crypto.html#crypto_verifier_verify_object_signature_signature_format
+        // The signature field accepts a TypedArray type, but it is only available starting ES2017
+    }
+    export function createDiffieHellman(prime_length: number, generator?: number): DiffieHellman;
+    export function createDiffieHellman(prime: Buffer): DiffieHellman;
+    export function createDiffieHellman(prime: string, prime_encoding: HexBase64Latin1Encoding): DiffieHellman;
+    export function createDiffieHellman(prime: string, prime_encoding: HexBase64Latin1Encoding, generator: number | Buffer): DiffieHellman;
+    export function createDiffieHellman(prime: string, prime_encoding: HexBase64Latin1Encoding, generator: string, generator_encoding: HexBase64Latin1Encoding): DiffieHellman;
+    export interface DiffieHellman {
+        generateKeys(): Buffer;
+        generateKeys(encoding: HexBase64Latin1Encoding): string;
+        computeSecret(other_public_key: Buffer): Buffer;
+        computeSecret(other_public_key: string, input_encoding: HexBase64Latin1Encoding): Buffer;
+        computeSecret(other_public_key: string, input_encoding: HexBase64Latin1Encoding, output_encoding: HexBase64Latin1Encoding): string;
+        getPrime(): Buffer;
+        getPrime(encoding: HexBase64Latin1Encoding): string;
+        getGenerator(): Buffer;
+        getGenerator(encoding: HexBase64Latin1Encoding): string;
+        getPublicKey(): Buffer;
+        getPublicKey(encoding: HexBase64Latin1Encoding): string;
+        getPrivateKey(): Buffer;
+        getPrivateKey(encoding: HexBase64Latin1Encoding): string;
+        setPublicKey(public_key: Buffer): void;
+        setPublicKey(public_key: string, encoding: string): void;
+        setPrivateKey(private_key: Buffer): void;
+        setPrivateKey(private_key: string, encoding: string): void;
+        verifyError: number;
+    }
+    export function getDiffieHellman(group_name: string): DiffieHellman;
+    export function pbkdf2(password: string | Buffer, salt: string | Buffer, iterations: number, keylen: number, digest: string, callback: (err: Error, derivedKey: Buffer) => any): void;
+    export function pbkdf2Sync(password: string | Buffer, salt: string | Buffer, iterations: number, keylen: number, digest: string): Buffer;
+    export function randomBytes(size: number): Buffer;
+    export function randomBytes(size: number, callback: (err: Error, buf: Buffer) => void): void;
+    export function pseudoRandomBytes(size: number): Buffer;
+    export function pseudoRandomBytes(size: number, callback: (err: Error, buf: Buffer) => void): void;
+    export function randomFillSync(buffer: Buffer | Uint8Array, offset?: number, size?: number): Buffer;
+    export function randomFill(buffer: Buffer, callback: (err: Error, buf: Buffer) => void): void;
+    export function randomFill(buffer: Uint8Array, callback: (err: Error, buf: Uint8Array) => void): void;
+    export function randomFill(buffer: Buffer, offset: number, callback: (err: Error, buf: Buffer) => void): void;
+    export function randomFill(buffer: Uint8Array, offset: number, callback: (err: Error, buf: Uint8Array) => void): void;
+    export function randomFill(buffer: Buffer, offset: number, size: number, callback: (err: Error, buf: Buffer) => void): void;
+    export function randomFill(buffer: Uint8Array, offset: number, size: number, callback: (err: Error, buf: Uint8Array) => void): void;
+    export interface RsaPublicKey {
+        key: string;
+        padding?: number;
+    }
+    export interface RsaPrivateKey {
+        key: string;
+        passphrase?: string;
+        padding?: number;
+    }
+    export function publicEncrypt(public_key: string | RsaPublicKey, buffer: Buffer): Buffer;
+    export function privateDecrypt(private_key: string | RsaPrivateKey, buffer: Buffer): Buffer;
+    export function privateEncrypt(private_key: string | RsaPrivateKey, buffer: Buffer): Buffer;
+    export function publicDecrypt(public_key: string | RsaPublicKey, buffer: Buffer): Buffer;
+    export function getCiphers(): string[];
+    export function getCurves(): string[];
+    export function getHashes(): string[];
+    export interface ECDH {
+        generateKeys(): Buffer;
+        generateKeys(encoding: HexBase64Latin1Encoding): string;
+        generateKeys(encoding: HexBase64Latin1Encoding, format: ECDHKeyFormat): string;
+        computeSecret(other_public_key: Buffer): Buffer;
+        computeSecret(other_public_key: string, input_encoding: HexBase64Latin1Encoding): Buffer;
+        computeSecret(other_public_key: string, input_encoding: HexBase64Latin1Encoding, output_encoding: HexBase64Latin1Encoding): string;
+        getPrivateKey(): Buffer;
+        getPrivateKey(encoding: HexBase64Latin1Encoding): string;
+        getPublicKey(): Buffer;
+        getPublicKey(encoding: HexBase64Latin1Encoding): string;
+        getPublicKey(encoding: HexBase64Latin1Encoding, format: ECDHKeyFormat): string;
+        setPrivateKey(private_key: Buffer): void;
+        setPrivateKey(private_key: string, encoding: HexBase64Latin1Encoding): void;
+    }
+    export function createECDH(curve_name: string): ECDH;
+    export function timingSafeEqual(a: Buffer, b: Buffer): boolean;
+    export var DEFAULT_ENCODING: string;
 }
 
 declare module "stream" {
-	import * as events from "events";
-
-	class internal extends events.EventEmitter {
-		pipe<T extends NodeJS.WritableStream>(destination: T, options?: { end?: boolean; }): T;
-	}
-
-	namespace internal {
-
-		export class Stream extends internal { }
-
-		export interface ReadableOptions {
-			highWaterMark?: number;
-			encoding?: string;
-			objectMode?: boolean;
-			read?: (this: Readable, size?: number) => any;
-		}
-
-		export class Readable extends Stream implements NodeJS.ReadableStream {
-			readable: boolean;
-			constructor(opts?: ReadableOptions);
-			_read(size: number): void;
-			read(size?: number): any;
-			setEncoding(encoding: string): this;
-			pause(): this;
-			resume(): this;
-			isPaused(): boolean;
-			pipe<T extends NodeJS.WritableStream>(destination: T, options?: { end?: boolean; }): T;
-			unpipe<T extends NodeJS.WritableStream>(destination?: T): this;
-			unshift(chunk: any): void;
-			wrap(oldStream: NodeJS.ReadableStream): Readable;
-			push(chunk: any, encoding?: string): boolean;
+    import * as events from "events";
+
+    class internal extends events.EventEmitter {
+        pipe<T extends NodeJS.WritableStream>(destination: T, options?: { end?: boolean; }): T;
+    }
+
+    namespace internal {
+        export class Stream extends internal { }
+
+        export interface ReadableOptions {
+            highWaterMark?: number;
+            encoding?: string;
+            objectMode?: boolean;
+            read?: (this: Readable, size?: number) => any;
+            destroy?: (error?: Error) => any;
+        }
+
+        export class Readable extends Stream implements NodeJS.ReadableStream {
+            readable: boolean;
+            constructor(opts?: ReadableOptions);
+            _read(size: number): void;
+            read(size?: number): any;
+            setEncoding(encoding: string): this;
+            pause(): this;
+            resume(): this;
+            isPaused(): boolean;
+            unpipe<T extends NodeJS.WritableStream>(destination?: T): this;
+            unshift(chunk: any): void;
+            wrap(oldStream: NodeJS.ReadableStream): this;
+            push(chunk: any, encoding?: string): boolean;
+            _destroy(err: Error, callback: Function): void;
+            destroy(error?: Error): void;
 
             /**
              * Event emitter
              * The defined events on documents including:
-             *   1. close
-             *   2. data
-             *   3. end
-             *   4. readable
-             *   5. error
-             **/
-			addListener(event: string, listener: Function): this;
-			addListener(event: string, listener: Function): this;
-			addListener(event: "close", listener: () => void): this;
-			addListener(event: "data", listener: (chunk: Buffer | string) => void): this;
-			addListener(event: "end", listener: () => void): this;
-			addListener(event: "readable", listener: () => void): this;
-			addListener(event: "error", listener: (err: Error) => void): this;
-
-			emit(event: string | symbol, ...args: any[]): boolean;
-			emit(event: "close"): boolean;
-			emit(event: "data", chunk: Buffer | string): boolean;
-			emit(event: "end"): boolean;
-			emit(event: "readable"): boolean;
-			emit(event: "error", err: Error): boolean;
-
-			on(event: string, listener: Function): this;
-			on(event: "close", listener: () => void): this;
-			on(event: "data", listener: (chunk: Buffer | string) => void): this;
-			on(event: "end", listener: () => void): this;
-			on(event: "readable", listener: () => void): this;
-			on(event: "error", listener: (err: Error) => void): this;
-
-			once(event: string, listener: Function): this;
-			once(event: "close", listener: () => void): this;
-			once(event: "data", listener: (chunk: Buffer | string) => void): this;
-			once(event: "end", listener: () => void): this;
-			once(event: "readable", listener: () => void): this;
-			once(event: "error", listener: (err: Error) => void): this;
-
-			prependListener(event: string, listener: Function): this;
-			prependListener(event: "close", listener: () => void): this;
-			prependListener(event: "data", listener: (chunk: Buffer | string) => void): this;
-			prependListener(event: "end", listener: () => void): this;
-			prependListener(event: "readable", listener: () => void): this;
-			prependListener(event: "error", listener: (err: Error) => void): this;
-
-			prependOnceListener(event: string, listener: Function): this;
-			prependOnceListener(event: "close", listener: () => void): this;
-			prependOnceListener(event: "data", listener: (chunk: Buffer | string) => void): this;
-			prependOnceListener(event: "end", listener: () => void): this;
-			prependOnceListener(event: "readable", listener: () => void): this;
-			prependOnceListener(event: "error", listener: (err: Error) => void): this;
-
-			removeListener(event: string, listener: Function): this;
-			removeListener(event: "close", listener: () => void): this;
-			removeListener(event: "data", listener: (chunk: Buffer | string) => void): this;
-			removeListener(event: "end", listener: () => void): this;
-			removeListener(event: "readable", listener: () => void): this;
-			removeListener(event: "error", listener: (err: Error) => void): this;
-		}
-
-		export interface WritableOptions {
-			highWaterMark?: number;
-			decodeStrings?: boolean;
-			objectMode?: boolean;
-			write?: (chunk: string | Buffer, encoding: string, callback: Function) => any;
-			writev?: (chunks: { chunk: string | Buffer, encoding: string }[], callback: Function) => any;
-		}
-
-		export class Writable extends Stream implements NodeJS.WritableStream {
-			writable: boolean;
-			constructor(opts?: WritableOptions);
-			_write(chunk: any, encoding: string, callback: Function): void;
-			write(chunk: any, cb?: Function): boolean;
-			write(chunk: any, encoding?: string, cb?: Function): boolean;
-			setDefaultEncoding(encoding: string): this;
-			end(): void;
-			end(chunk: any, cb?: Function): void;
-			end(chunk: any, encoding?: string, cb?: Function): void;
+             * 1. close
+             * 2. data
+             * 3. end
+             * 4. readable
+             * 5. error
+             */
+            addListener(event: string, listener: (...args: any[]) => void): this;
+            addListener(event: "close", listener: () => void): this;
+            addListener(event: "data", listener: (chunk: Buffer | string) => void): this;
+            addListener(event: "end", listener: () => void): this;
+            addListener(event: "readable", listener: () => void): this;
+            addListener(event: "error", listener: (err: Error) => void): this;
+
+            emit(event: string | symbol, ...args: any[]): boolean;
+            emit(event: "close"): boolean;
+            emit(event: "data", chunk: Buffer | string): boolean;
+            emit(event: "end"): boolean;
+            emit(event: "readable"): boolean;
+            emit(event: "error", err: Error): boolean;
+
+            on(event: string, listener: (...args: any[]) => void): this;
+            on(event: "close", listener: () => void): this;
+            on(event: "data", listener: (chunk: Buffer | string) => void): this;
+            on(event: "end", listener: () => void): this;
+            on(event: "readable", listener: () => void): this;
+            on(event: "error", listener: (err: Error) => void): this;
+
+            once(event: string, listener: (...args: any[]) => void): this;
+            once(event: "close", listener: () => void): this;
+            once(event: "data", listener: (chunk: Buffer | string) => void): this;
+            once(event: "end", listener: () => void): this;
+            once(event: "readable", listener: () => void): this;
+            once(event: "error", listener: (err: Error) => void): this;
+
+            prependListener(event: string, listener: (...args: any[]) => void): this;
+            prependListener(event: "close", listener: () => void): this;
+            prependListener(event: "data", listener: (chunk: Buffer | string) => void): this;
+            prependListener(event: "end", listener: () => void): this;
+            prependListener(event: "readable", listener: () => void): this;
+            prependListener(event: "error", listener: (err: Error) => void): this;
+
+            prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+            prependOnceListener(event: "close", listener: () => void): this;
+            prependOnceListener(event: "data", listener: (chunk: Buffer | string) => void): this;
+            prependOnceListener(event: "end", listener: () => void): this;
+            prependOnceListener(event: "readable", listener: () => void): this;
+            prependOnceListener(event: "error", listener: (err: Error) => void): this;
+
+            removeListener(event: string, listener: (...args: any[]) => void): this;
+            removeListener(event: "close", listener: () => void): this;
+            removeListener(event: "data", listener: (chunk: Buffer | string) => void): this;
+            removeListener(event: "end", listener: () => void): this;
+            removeListener(event: "readable", listener: () => void): this;
+            removeListener(event: "error", listener: (err: Error) => void): this;
+        }
+
+        export interface WritableOptions {
+            highWaterMark?: number;
+            decodeStrings?: boolean;
+            objectMode?: boolean;
+            write?: (chunk: string | Buffer, encoding: string, callback: Function) => any;
+            writev?: (chunks: Array<{ chunk: string | Buffer, encoding: string }>, callback: Function) => any;
+            destroy?: (error?: Error) => any;
+            final?: (callback: (error?: Error) => void) => void;
+        }
+
+        export class Writable extends Stream implements NodeJS.WritableStream {
+            writable: boolean;
+            constructor(opts?: WritableOptions);
+            _write(chunk: any, encoding: string, callback: (err?: Error) => void): void;
+            _writev?(chunks: Array<{ chunk: any, encoding: string }>, callback: (err?: Error) => void): void;
+            _destroy(err: Error, callback: Function): void;
+            _final(callback: Function): void;
+            write(chunk: any, cb?: Function): boolean;
+            write(chunk: any, encoding?: string, cb?: Function): boolean;
+            setDefaultEncoding(encoding: string): this;
+            end(cb?: Function): void;
+            end(chunk: any, cb?: Function): void;
+            end(chunk: any, encoding?: string, cb?: Function): void;
+            cork(): void;
+            uncork(): void;
+            destroy(error?: Error): void;
 
             /**
              * Event emitter
              * The defined events on documents including:
-             *   1. close
-             *   2. drain
-             *   3. error
-             *   4. finish
-             *   5. pipe
-             *   6. unpipe
-             **/
-			addListener(event: string, listener: Function): this;
-			addListener(event: "close", listener: () => void): this;
-			addListener(event: "drain", listener: () => void): this;
-			addListener(event: "error", listener: (err: Error) => void): this;
-			addListener(event: "finish", listener: () => void): this;
-			addListener(event: "pipe", listener: (src: Readable) => void): this;
-			addListener(event: "unpipe", listener: (src: Readable) => void): this;
-
-			emit(event: string | symbol, ...args: any[]): boolean;
-			emit(event: "close"): boolean;
-			emit(event: "drain", chunk: Buffer | string): boolean;
-			emit(event: "error", err: Error): boolean;
-			emit(event: "finish"): boolean;
-			emit(event: "pipe", src: Readable): boolean;
-			emit(event: "unpipe", src: Readable): boolean;
-
-			on(event: string, listener: Function): this;
-			on(event: "close", listener: () => void): this;
-			on(event: "drain", listener: () => void): this;
-			on(event: "error", listener: (err: Error) => void): this;
-			on(event: "finish", listener: () => void): this;
-			on(event: "pipe", listener: (src: Readable) => void): this;
-			on(event: "unpipe", listener: (src: Readable) => void): this;
-
-			once(event: string, listener: Function): this;
-			once(event: "close", listener: () => void): this;
-			once(event: "drain", listener: () => void): this;
-			once(event: "error", listener: (err: Error) => void): this;
-			once(event: "finish", listener: () => void): this;
-			once(event: "pipe", listener: (src: Readable) => void): this;
-			once(event: "unpipe", listener: (src: Readable) => void): this;
-
-			prependListener(event: string, listener: Function): this;
-			prependListener(event: "close", listener: () => void): this;
-			prependListener(event: "drain", listener: () => void): this;
-			prependListener(event: "error", listener: (err: Error) => void): this;
-			prependListener(event: "finish", listener: () => void): this;
-			prependListener(event: "pipe", listener: (src: Readable) => void): this;
-			prependListener(event: "unpipe", listener: (src: Readable) => void): this;
-
-			prependOnceListener(event: string, listener: Function): this;
-			prependOnceListener(event: "close", listener: () => void): this;
-			prependOnceListener(event: "drain", listener: () => void): this;
-			prependOnceListener(event: "error", listener: (err: Error) => void): this;
-			prependOnceListener(event: "finish", listener: () => void): this;
-			prependOnceListener(event: "pipe", listener: (src: Readable) => void): this;
-			prependOnceListener(event: "unpipe", listener: (src: Readable) => void): this;
-
-			removeListener(event: string, listener: Function): this;
-			removeListener(event: "close", listener: () => void): this;
-			removeListener(event: "drain", listener: () => void): this;
-			removeListener(event: "error", listener: (err: Error) => void): this;
-			removeListener(event: "finish", listener: () => void): this;
-			removeListener(event: "pipe", listener: (src: Readable) => void): this;
-			removeListener(event: "unpipe", listener: (src: Readable) => void): this;
-		}
-
-		export interface DuplexOptions extends ReadableOptions, WritableOptions {
-			allowHalfOpen?: boolean;
-			readableObjectMode?: boolean;
-			writableObjectMode?: boolean;
-		}
-
-		// Note: Duplex extends both Readable and Writable.
-		export class Duplex extends Readable implements Writable {
-			writable: boolean;
-			constructor(opts?: DuplexOptions);
-			_write(chunk: any, encoding: string, callback: Function): void;
-			write(chunk: any, cb?: Function): boolean;
-			write(chunk: any, encoding?: string, cb?: Function): boolean;
-			setDefaultEncoding(encoding: string): this;
-			end(): void;
-			end(chunk: any, cb?: Function): void;
-			end(chunk: any, encoding?: string, cb?: Function): void;
-		}
-
-		export interface TransformOptions extends DuplexOptions {
-			transform?: (chunk: string | Buffer, encoding: string, callback: Function) => any;
-			flush?: (callback: Function) => any;
-		}
-
-		export class Transform extends Duplex {
-			constructor(opts?: TransformOptions);
-			_transform(chunk: any, encoding: string, callback: Function): void;
-		}
-
-		export class PassThrough extends Transform { }
-	}
-
-	export = internal;
+             * 1. close
+             * 2. drain
+             * 3. error
+             * 4. finish
+             * 5. pipe
+             * 6. unpipe
+             */
+            addListener(event: string, listener: (...args: any[]) => void): this;
+            addListener(event: "close", listener: () => void): this;
+            addListener(event: "drain", listener: () => void): this;
+            addListener(event: "error", listener: (err: Error) => void): this;
+            addListener(event: "finish", listener: () => void): this;
+            addListener(event: "pipe", listener: (src: Readable) => void): this;
+            addListener(event: "unpipe", listener: (src: Readable) => void): this;
+
+            emit(event: string | symbol, ...args: any[]): boolean;
+            emit(event: "close"): boolean;
+            emit(event: "drain", chunk: Buffer | string): boolean;
+            emit(event: "error", err: Error): boolean;
+            emit(event: "finish"): boolean;
+            emit(event: "pipe", src: Readable): boolean;
+            emit(event: "unpipe", src: Readable): boolean;
+
+            on(event: string, listener: (...args: any[]) => void): this;
+            on(event: "close", listener: () => void): this;
+            on(event: "drain", listener: () => void): this;
+            on(event: "error", listener: (err: Error) => void): this;
+            on(event: "finish", listener: () => void): this;
+            on(event: "pipe", listener: (src: Readable) => void): this;
+            on(event: "unpipe", listener: (src: Readable) => void): this;
+
+            once(event: string, listener: (...args: any[]) => void): this;
+            once(event: "close", listener: () => void): this;
+            once(event: "drain", listener: () => void): this;
+            once(event: "error", listener: (err: Error) => void): this;
+            once(event: "finish", listener: () => void): this;
+            once(event: "pipe", listener: (src: Readable) => void): this;
+            once(event: "unpipe", listener: (src: Readable) => void): this;
+
+            prependListener(event: string, listener: (...args: any[]) => void): this;
+            prependListener(event: "close", listener: () => void): this;
+            prependListener(event: "drain", listener: () => void): this;
+            prependListener(event: "error", listener: (err: Error) => void): this;
+            prependListener(event: "finish", listener: () => void): this;
+            prependListener(event: "pipe", listener: (src: Readable) => void): this;
+            prependListener(event: "unpipe", listener: (src: Readable) => void): this;
+
+            prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+            prependOnceListener(event: "close", listener: () => void): this;
+            prependOnceListener(event: "drain", listener: () => void): this;
+            prependOnceListener(event: "error", listener: (err: Error) => void): this;
+            prependOnceListener(event: "finish", listener: () => void): this;
+            prependOnceListener(event: "pipe", listener: (src: Readable) => void): this;
+            prependOnceListener(event: "unpipe", listener: (src: Readable) => void): this;
+
+            removeListener(event: string, listener: (...args: any[]) => void): this;
+            removeListener(event: "close", listener: () => void): this;
+            removeListener(event: "drain", listener: () => void): this;
+            removeListener(event: "error", listener: (err: Error) => void): this;
+            removeListener(event: "finish", listener: () => void): this;
+            removeListener(event: "pipe", listener: (src: Readable) => void): this;
+            removeListener(event: "unpipe", listener: (src: Readable) => void): this;
+        }
+
+        export interface DuplexOptions extends ReadableOptions, WritableOptions {
+            allowHalfOpen?: boolean;
+            readableObjectMode?: boolean;
+            writableObjectMode?: boolean;
+        }
+
+        // Note: Duplex extends both Readable and Writable.
+        export class Duplex extends Readable implements Writable {
+            writable: boolean;
+            constructor(opts?: DuplexOptions);
+            _write(chunk: any, encoding: string, callback: (err?: Error) => void): void;
+            _writev?(chunks: Array<{ chunk: any, encoding: string }>, callback: (err?: Error) => void): void;
+            _destroy(err: Error, callback: Function): void;
+            _final(callback: Function): void;
+            write(chunk: any, cb?: Function): boolean;
+            write(chunk: any, encoding?: string, cb?: Function): boolean;
+            setDefaultEncoding(encoding: string): this;
+            end(cb?: Function): void;
+            end(chunk: any, cb?: Function): void;
+            end(chunk: any, encoding?: string, cb?: Function): void;
+            cork(): void;
+            uncork(): void;
+        }
+
+        export interface TransformOptions extends DuplexOptions {
+            transform?: (chunk: string | Buffer, encoding: string, callback: Function) => any;
+            flush?: (callback: Function) => any;
+        }
+
+        export class Transform extends Duplex {
+            constructor(opts?: TransformOptions);
+            _transform(chunk: any, encoding: string, callback: Function): void;
+            destroy(error?: Error): void;
+        }
+
+        export class PassThrough extends Transform { }
+    }
+
+    export = internal;
 }
 
 declare module "util" {
-	export interface InspectOptions extends NodeJS.InspectOptions { }
-	export function format(format: any, ...param: any[]): string;
-	export function debug(string: string): void;
-	export function error(...param: any[]): void;
-	export function puts(...param: any[]): void;
-	export function print(...param: any[]): void;
-	export function log(string: string): void;
-	export function inspect(object: any, showHidden?: boolean, depth?: number | null, color?: boolean): string;
-	export function inspect(object: any, options: InspectOptions): string;
-	export function isArray(object: any): object is any[];
-	export function isRegExp(object: any): object is RegExp;
-	export function isDate(object: any): object is Date;
-	export function isError(object: any): object is Error;
-	export function inherits(constructor: any, superConstructor: any): void;
-	export function debuglog(key: string): (msg: string, ...param: any[]) => void;
-	export function isBoolean(object: any): object is boolean;
-	export function isBuffer(object: any): object is Buffer;
-	export function isFunction(object: any): boolean;
-	export function isNull(object: any): object is null;
-	export function isNullOrUndefined(object: any): object is null | undefined;
-	export function isNumber(object: any): object is number;
-	export function isObject(object: any): boolean;
-	export function isPrimitive(object: any): boolean;
-	export function isString(object: any): object is string;
-	export function isSymbol(object: any): object is symbol;
-	export function isUndefined(object: any): object is undefined;
-	export function deprecate<T extends Function>(fn: T, message: string): T;
+    export interface InspectOptions extends NodeJS.InspectOptions { }
+    export function format(format: any, ...param: any[]): string;
+    export function debug(string: string): void;
+    export function error(...param: any[]): void;
+    export function puts(...param: any[]): void;
+    export function print(...param: any[]): void;
+    export function log(string: string): void;
+    export var inspect: {
+        (object: any, showHidden?: boolean, depth?: number | null, color?: boolean): string;
+        (object: any, options: InspectOptions): string;
+        colors: {
+            [color: string]: [number, number] | undefined
+        }
+        styles: {
+            [style: string]: string | undefined
+        }
+        defaultOptions: InspectOptions;
+        custom: symbol;
+    };
+    export function isArray(object: any): object is any[];
+    export function isRegExp(object: any): object is RegExp;
+    export function isDate(object: any): object is Date;
+    export function isError(object: any): object is Error;
+    export function inherits(constructor: any, superConstructor: any): void;
+    export function debuglog(key: string): (msg: string, ...param: any[]) => void;
+    export function isBoolean(object: any): object is boolean;
+    export function isBuffer(object: any): object is Buffer;
+    export function isFunction(object: any): boolean;
+    export function isNull(object: any): object is null;
+    export function isNullOrUndefined(object: any): object is null | undefined;
+    export function isNumber(object: any): object is number;
+    export function isObject(object: any): boolean;
+    export function isPrimitive(object: any): boolean;
+    export function isString(object: any): object is string;
+    export function isSymbol(object: any): object is symbol;
+    export function isUndefined(object: any): object is undefined;
+    export function deprecate<T extends Function>(fn: T, message: string): T;
+
+    export interface CustomPromisify<TCustom extends Function> extends Function {
+        __promisify__: TCustom;
+    }
+
+    export function callbackify(fn: () => Promise<void>): (callback: (err: NodeJS.ErrnoException) => void) => void;
+    export function callbackify<TResult>(fn: () => Promise<TResult>): (callback: (err: NodeJS.ErrnoException, result: TResult) => void) => void;
+    export function callbackify<T1>(fn: (arg1: T1) => Promise<void>): (arg1: T1, callback: (err: NodeJS.ErrnoException) => void) => void;
+    export function callbackify<T1, TResult>(fn: (arg1: T1) => Promise<TResult>): (arg1: T1, callback: (err: NodeJS.ErrnoException, result: TResult) => void) => void;
+    export function callbackify<T1, T2>(fn: (arg1: T1, arg2: T2) => Promise<void>): (arg1: T1, arg2: T2, callback: (err: NodeJS.ErrnoException) => void) => void;
+    export function callbackify<T1, T2, TResult>(fn: (arg1: T1, arg2: T2) => Promise<TResult>): (arg1: T1, arg2: T2, callback: (err: NodeJS.ErrnoException, result: TResult) => void) => void;
+    export function callbackify<T1, T2, T3>(fn: (arg1: T1, arg2: T2, arg3: T3) => Promise<void>): (arg1: T1, arg2: T2, arg3: T3, callback: (err: NodeJS.ErrnoException) => void) => void;
+    export function callbackify<T1, T2, T3, TResult>(fn: (arg1: T1, arg2: T2, arg3: T3) => Promise<TResult>): (arg1: T1, arg2: T2, arg3: T3, callback: (err: NodeJS.ErrnoException, result: TResult) => void) => void;
+    export function callbackify<T1, T2, T3, T4>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4) => Promise<void>): (arg1: T1, arg2: T2, arg3: T3, arg4: T4, callback: (err: NodeJS.ErrnoException) => void) => void;
+    export function callbackify<T1, T2, T3, T4, TResult>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4) => Promise<TResult>): (arg1: T1, arg2: T2, arg3: T3, arg4: T4, callback: (err: NodeJS.ErrnoException, result: TResult) => void) => void;
+    export function callbackify<T1, T2, T3, T4, T5>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5) => Promise<void>): (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5, callback: (err: NodeJS.ErrnoException) => void) => void;
+    export function callbackify<T1, T2, T3, T4, T5, TResult>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5) => Promise<TResult>): (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5, callback: (err: NodeJS.ErrnoException, result: TResult) => void) => void;
+    export function callbackify<T1, T2, T3, T4, T5, T6>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5, arg6: T6) => Promise<void>): (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5, arg6: T6, callback: (err: NodeJS.ErrnoException) => void) => void;
+    export function callbackify<T1, T2, T3, T4, T5, T6, TResult>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5, arg6: T6) => Promise<TResult>): (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5, arg6: T6, callback: (err: NodeJS.ErrnoException, result: TResult) => void) => void;
+
+    export function promisify<TCustom extends Function>(fn: CustomPromisify<TCustom>): TCustom;
+    export function promisify<TResult>(fn: (callback: (err: Error, result: TResult) => void) => void): () => Promise<TResult>;
+    export function promisify(fn: (callback: (err: Error) => void) => void): () => Promise<void>;
+    export function promisify<T1, TResult>(fn: (arg1: T1, callback: (err: Error, result: TResult) => void) => void): (arg1: T1) => Promise<TResult>;
+    export function promisify<T1>(fn: (arg1: T1, callback: (err: Error) => void) => void): (arg1: T1) => Promise<void>;
+    export function promisify<T1, T2, TResult>(fn: (arg1: T1, arg2: T2, callback: (err: Error, result: TResult) => void) => void): (arg1: T1, arg2: T2) => Promise<TResult>;
+    export function promisify<T1, T2>(fn: (arg1: T1, arg2: T2, callback: (err: Error) => void) => void): (arg1: T1, arg2: T2) => Promise<void>;
+    export function promisify<T1, T2, T3, TResult>(fn: (arg1: T1, arg2: T2, arg3: T3, callback: (err: Error, result: TResult) => void) => void): (arg1: T1, arg2: T2, arg3: T3) => Promise<TResult>;
+    export function promisify<T1, T2, T3>(fn: (arg1: T1, arg2: T2, arg3: T3, callback: (err: Error) => void) => void): (arg1: T1, arg2: T2, arg3: T3) => Promise<void>;
+    export function promisify<T1, T2, T3, T4, TResult>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4, callback: (err: Error, result: TResult) => void) => void): (arg1: T1, arg2: T2, arg3: T3, arg4: T4) => Promise<TResult>;
+    export function promisify<T1, T2, T3, T4>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4, callback: (err: Error) => void) => void): (arg1: T1, arg2: T2, arg3: T3, arg4: T4) => Promise<void>;
+    export function promisify<T1, T2, T3, T4, T5, TResult>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5, callback: (err: Error, result: TResult) => void) => void): (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5) => Promise<TResult>;
+    export function promisify<T1, T2, T3, T4, T5>(fn: (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5, callback: (err: Error) => void) => void): (arg1: T1, arg2: T2, arg3: T3, arg4: T4, arg5: T5) => Promise<void>;
+    export function promisify(fn: Function): Function;
+    export namespace promisify {
+        const custom: symbol;
+    }
 }
 
 declare module "assert" {
-	function internal(value: any, message?: string): void;
-	namespace internal {
-		export class AssertionError implements Error {
-			name: string;
-			message: string;
-			actual: any;
-			expected: any;
-			operator: string;
-			generatedMessage: boolean;
-
-			constructor(options?: {
-				message?: string; actual?: any; expected?: any;
-				operator?: string; stackStartFunction?: Function
-			});
-		}
-
-		export function fail(actual?: any, expected?: any, message?: string, operator?: string): void;
-		export function ok(value: any, message?: string): void;
-		export function equal(actual: any, expected: any, message?: string): void;
-		export function notEqual(actual: any, expected: any, message?: string): void;
-		export function deepEqual(actual: any, expected: any, message?: string): void;
-		export function notDeepEqual(acutal: any, expected: any, message?: string): void;
-		export function strictEqual(actual: any, expected: any, message?: string): void;
-		export function notStrictEqual(actual: any, expected: any, message?: string): void;
-		export function deepStrictEqual(actual: any, expected: any, message?: string): void;
-		export function notDeepStrictEqual(actual: any, expected: any, message?: string): void;
-
-		export function throws(block: Function, message?: string): void;
-		export function throws(block: Function, error: Function, message?: string): void;
-		export function throws(block: Function, error: RegExp, message?: string): void;
-		export function throws(block: Function, error: (err: any) => boolean, message?: string): void;
-
-		export function doesNotThrow(block: Function, message?: string): void;
-		export function doesNotThrow(block: Function, error: Function, message?: string): void;
-		export function doesNotThrow(block: Function, error: RegExp, message?: string): void;
-		export function doesNotThrow(block: Function, error: (err: any) => boolean, message?: string): void;
-
-		export function ifError(value: any): void;
-	}
-
-	export = internal;
+    function internal(value: any, message?: string): void;
+    namespace internal {
+        export class AssertionError implements Error {
+            name: string;
+            message: string;
+            actual: any;
+            expected: any;
+            operator: string;
+            generatedMessage: boolean;
+
+            constructor(options?: {
+                message?: string; actual?: any; expected?: any;
+                operator?: string; stackStartFunction?: Function
+            });
+        }
+
+        export function fail(message: string): void;
+        export function fail(actual: any, expected: any, message?: string, operator?: string): void;
+        export function ok(value: any, message?: string): void;
+        export function equal(actual: any, expected: any, message?: string): void;
+        export function notEqual(actual: any, expected: any, message?: string): void;
+        export function deepEqual(actual: any, expected: any, message?: string): void;
+        export function notDeepEqual(acutal: any, expected: any, message?: string): void;
+        export function strictEqual(actual: any, expected: any, message?: string): void;
+        export function notStrictEqual(actual: any, expected: any, message?: string): void;
+        export function deepStrictEqual(actual: any, expected: any, message?: string): void;
+        export function notDeepStrictEqual(actual: any, expected: any, message?: string): void;
+
+        export function throws(block: Function, message?: string): void;
+        export function throws(block: Function, error: Function, message?: string): void;
+        export function throws(block: Function, error: RegExp, message?: string): void;
+        export function throws(block: Function, error: (err: any) => boolean, message?: string): void;
+
+        export function doesNotThrow(block: Function, message?: string): void;
+        export function doesNotThrow(block: Function, error: Function, message?: string): void;
+        export function doesNotThrow(block: Function, error: RegExp, message?: string): void;
+        export function doesNotThrow(block: Function, error: (err: any) => boolean, message?: string): void;
+
+        export function ifError(value: any): void;
+    }
+
+    export = internal;
 }
 
 declare module "tty" {
-	import * as net from "net";
-
-	export function isatty(fd: number): boolean;
-	export interface ReadStream extends net.Socket {
-		isRaw: boolean;
-		setRawMode(mode: boolean): void;
-		isTTY: boolean;
-	}
-	export interface WriteStream extends net.Socket {
-		columns: number;
-		rows: number;
-		isTTY: boolean;
-	}
+    import * as net from "net";
+
+    export function isatty(fd: number): boolean;
+    export class ReadStream extends net.Socket {
+        isRaw: boolean;
+        setRawMode(mode: boolean): void;
+        isTTY: boolean;
+    }
+    export class WriteStream extends net.Socket {
+        columns: number;
+        rows: number;
+        isTTY: boolean;
+    }
 }
 
 declare module "domain" {
-	import * as events from "events";
-
-	export class Domain extends events.EventEmitter implements NodeJS.Domain {
-		run(fn: Function): void;
-		add(emitter: events.EventEmitter): void;
-		remove(emitter: events.EventEmitter): void;
-		bind(cb: (err: Error, data: any) => any): any;
-		intercept(cb: (data: any) => any): any;
-		dispose(): void;
-		members: any[];
-		enter(): void;
-		exit(): void;
-	}
-
-	export function create(): Domain;
+    import * as events from "events";
+
+    export class Domain extends events.EventEmitter implements NodeJS.Domain {
+        run(fn: Function): void;
+        add(emitter: events.EventEmitter): void;
+        remove(emitter: events.EventEmitter): void;
+        bind(cb: (err: Error, data: any) => any): any;
+        intercept(cb: (data: any) => any): any;
+        dispose(): void;
+        members: any[];
+        enter(): void;
+        exit(): void;
+    }
+
+    export function create(): Domain;
 }
 
 declare module "constants" {
-	export var E2BIG: number;
-	export var EACCES: number;
-	export var EADDRINUSE: number;
-	export var EADDRNOTAVAIL: number;
-	export var EAFNOSUPPORT: number;
-	export var EAGAIN: number;
-	export var EALREADY: number;
-	export var EBADF: number;
-	export var EBADMSG: number;
-	export var EBUSY: number;
-	export var ECANCELED: number;
-	export var ECHILD: number;
-	export var ECONNABORTED: number;
-	export var ECONNREFUSED: number;
-	export var ECONNRESET: number;
-	export var EDEADLK: number;
-	export var EDESTADDRREQ: number;
-	export var EDOM: number;
-	export var EEXIST: number;
-	export var EFAULT: number;
-	export var EFBIG: number;
-	export var EHOSTUNREACH: number;
-	export var EIDRM: number;
-	export var EILSEQ: number;
-	export var EINPROGRESS: number;
-	export var EINTR: number;
-	export var EINVAL: number;
-	export var EIO: number;
-	export var EISCONN: number;
-	export var EISDIR: number;
-	export var ELOOP: number;
-	export var EMFILE: number;
-	export var EMLINK: number;
-	export var EMSGSIZE: number;
-	export var ENAMETOOLONG: number;
-	export var ENETDOWN: number;
-	export var ENETRESET: number;
-	export var ENETUNREACH: number;
-	export var ENFILE: number;
-	export var ENOBUFS: number;
-	export var ENODATA: number;
-	export var ENODEV: number;
-	export var ENOENT: number;
-	export var ENOEXEC: number;
-	export var ENOLCK: number;
-	export var ENOLINK: number;
-	export var ENOMEM: number;
-	export var ENOMSG: number;
-	export var ENOPROTOOPT: number;
-	export var ENOSPC: number;
-	export var ENOSR: number;
-	export var ENOSTR: number;
-	export var ENOSYS: number;
-	export var ENOTCONN: number;
-	export var ENOTDIR: number;
-	export var ENOTEMPTY: number;
-	export var ENOTSOCK: number;
-	export var ENOTSUP: number;
-	export var ENOTTY: number;
-	export var ENXIO: number;
-	export var EOPNOTSUPP: number;
-	export var EOVERFLOW: number;
-	export var EPERM: number;
-	export var EPIPE: number;
-	export var EPROTO: number;
-	export var EPROTONOSUPPORT: number;
-	export var EPROTOTYPE: number;
-	export var ERANGE: number;
-	export var EROFS: number;
-	export var ESPIPE: number;
-	export var ESRCH: number;
-	export var ETIME: number;
-	export var ETIMEDOUT: number;
-	export var ETXTBSY: number;
-	export var EWOULDBLOCK: number;
-	export var EXDEV: number;
-	export var WSAEINTR: number;
-	export var WSAEBADF: number;
-	export var WSAEACCES: number;
-	export var WSAEFAULT: number;
-	export var WSAEINVAL: number;
-	export var WSAEMFILE: number;
-	export var WSAEWOULDBLOCK: number;
-	export var WSAEINPROGRESS: number;
-	export var WSAEALREADY: number;
-	export var WSAENOTSOCK: number;
-	export var WSAEDESTADDRREQ: number;
-	export var WSAEMSGSIZE: number;
-	export var WSAEPROTOTYPE: number;
-	export var WSAENOPROTOOPT: number;
-	export var WSAEPROTONOSUPPORT: number;
-	export var WSAESOCKTNOSUPPORT: number;
-	export var WSAEOPNOTSUPP: number;
-	export var WSAEPFNOSUPPORT: number;
-	export var WSAEAFNOSUPPORT: number;
-	export var WSAEADDRINUSE: number;
-	export var WSAEADDRNOTAVAIL: number;
-	export var WSAENETDOWN: number;
-	export var WSAENETUNREACH: number;
-	export var WSAENETRESET: number;
-	export var WSAECONNABORTED: number;
-	export var WSAECONNRESET: number;
-	export var WSAENOBUFS: number;
-	export var WSAEISCONN: number;
-	export var WSAENOTCONN: number;
-	export var WSAESHUTDOWN: number;
-	export var WSAETOOMANYREFS: number;
-	export var WSAETIMEDOUT: number;
-	export var WSAECONNREFUSED: number;
-	export var WSAELOOP: number;
-	export var WSAENAMETOOLONG: number;
-	export var WSAEHOSTDOWN: number;
-	export var WSAEHOSTUNREACH: number;
-	export var WSAENOTEMPTY: number;
-	export var WSAEPROCLIM: number;
-	export var WSAEUSERS: number;
-	export var WSAEDQUOT: number;
-	export var WSAESTALE: number;
-	export var WSAEREMOTE: number;
-	export var WSASYSNOTREADY: number;
-	export var WSAVERNOTSUPPORTED: number;
-	export var WSANOTINITIALISED: number;
-	export var WSAEDISCON: number;
-	export var WSAENOMORE: number;
-	export var WSAECANCELLED: number;
-	export var WSAEINVALIDPROCTABLE: number;
-	export var WSAEINVALIDPROVIDER: number;
-	export var WSAEPROVIDERFAILEDINIT: number;
-	export var WSASYSCALLFAILURE: number;
-	export var WSASERVICE_NOT_FOUND: number;
-	export var WSATYPE_NOT_FOUND: number;
-	export var WSA_E_NO_MORE: number;
-	export var WSA_E_CANCELLED: number;
-	export var WSAEREFUSED: number;
-	export var SIGHUP: number;
-	export var SIGINT: number;
-	export var SIGILL: number;
-	export var SIGABRT: number;
-	export var SIGFPE: number;
-	export var SIGKILL: number;
-	export var SIGSEGV: number;
-	export var SIGTERM: number;
-	export var SIGBREAK: number;
-	export var SIGWINCH: number;
-	export var SSL_OP_ALL: number;
-	export var SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION: number;
-	export var SSL_OP_CIPHER_SERVER_PREFERENCE: number;
-	export var SSL_OP_CISCO_ANYCONNECT: number;
-	export var SSL_OP_COOKIE_EXCHANGE: number;
-	export var SSL_OP_CRYPTOPRO_TLSEXT_BUG: number;
-	export var SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS: number;
-	export var SSL_OP_EPHEMERAL_RSA: number;
-	export var SSL_OP_LEGACY_SERVER_CONNECT: number;
-	export var SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER: number;
-	export var SSL_OP_MICROSOFT_SESS_ID_BUG: number;
-	export var SSL_OP_MSIE_SSLV2_RSA_PADDING: number;
-	export var SSL_OP_NETSCAPE_CA_DN_BUG: number;
-	export var SSL_OP_NETSCAPE_CHALLENGE_BUG: number;
-	export var SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG: number;
-	export var SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG: number;
-	export var SSL_OP_NO_COMPRESSION: number;
-	export var SSL_OP_NO_QUERY_MTU: number;
-	export var SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION: number;
-	export var SSL_OP_NO_SSLv2: number;
-	export var SSL_OP_NO_SSLv3: number;
-	export var SSL_OP_NO_TICKET: number;
-	export var SSL_OP_NO_TLSv1: number;
-	export var SSL_OP_NO_TLSv1_1: number;
-	export var SSL_OP_NO_TLSv1_2: number;
-	export var SSL_OP_PKCS1_CHECK_1: number;
-	export var SSL_OP_PKCS1_CHECK_2: number;
-	export var SSL_OP_SINGLE_DH_USE: number;
-	export var SSL_OP_SINGLE_ECDH_USE: number;
-	export var SSL_OP_SSLEAY_080_CLIENT_DH_BUG: number;
-	export var SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG: number;
-	export var SSL_OP_TLS_BLOCK_PADDING_BUG: number;
-	export var SSL_OP_TLS_D5_BUG: number;
-	export var SSL_OP_TLS_ROLLBACK_BUG: number;
-	export var ENGINE_METHOD_DSA: number;
-	export var ENGINE_METHOD_DH: number;
-	export var ENGINE_METHOD_RAND: number;
-	export var ENGINE_METHOD_ECDH: number;
-	export var ENGINE_METHOD_ECDSA: number;
-	export var ENGINE_METHOD_CIPHERS: number;
-	export var ENGINE_METHOD_DIGESTS: number;
-	export var ENGINE_METHOD_STORE: number;
-	export var ENGINE_METHOD_PKEY_METHS: number;
-	export var ENGINE_METHOD_PKEY_ASN1_METHS: number;
-	export var ENGINE_METHOD_ALL: number;
-	export var ENGINE_METHOD_NONE: number;
-	export var DH_CHECK_P_NOT_SAFE_PRIME: number;
-	export var DH_CHECK_P_NOT_PRIME: number;
-	export var DH_UNABLE_TO_CHECK_GENERATOR: number;
-	export var DH_NOT_SUITABLE_GENERATOR: number;
-	export var NPN_ENABLED: number;
-	export var RSA_PKCS1_PADDING: number;
-	export var RSA_SSLV23_PADDING: number;
-	export var RSA_NO_PADDING: number;
-	export var RSA_PKCS1_OAEP_PADDING: number;
-	export var RSA_X931_PADDING: number;
-	export var RSA_PKCS1_PSS_PADDING: number;
-	export var POINT_CONVERSION_COMPRESSED: number;
-	export var POINT_CONVERSION_UNCOMPRESSED: number;
-	export var POINT_CONVERSION_HYBRID: number;
-	export var O_RDONLY: number;
-	export var O_WRONLY: number;
-	export var O_RDWR: number;
-	export var S_IFMT: number;
-	export var S_IFREG: number;
-	export var S_IFDIR: number;
-	export var S_IFCHR: number;
-	export var S_IFBLK: number;
-	export var S_IFIFO: number;
-	export var S_IFSOCK: number;
-	export var S_IRWXU: number;
-	export var S_IRUSR: number;
-	export var S_IWUSR: number;
-	export var S_IXUSR: number;
-	export var S_IRWXG: number;
-	export var S_IRGRP: number;
-	export var S_IWGRP: number;
-	export var S_IXGRP: number;
-	export var S_IRWXO: number;
-	export var S_IROTH: number;
-	export var S_IWOTH: number;
-	export var S_IXOTH: number;
-	export var S_IFLNK: number;
-	export var O_CREAT: number;
-	export var O_EXCL: number;
-	export var O_NOCTTY: number;
-	export var O_DIRECTORY: number;
-	export var O_NOATIME: number;
-	export var O_NOFOLLOW: number;
-	export var O_SYNC: number;
-	export var O_SYMLINK: number;
-	export var O_DIRECT: number;
-	export var O_NONBLOCK: number;
-	export var O_TRUNC: number;
-	export var O_APPEND: number;
-	export var F_OK: number;
-	export var R_OK: number;
-	export var W_OK: number;
-	export var X_OK: number;
-	export var UV_UDP_REUSEADDR: number;
-	export var SIGQUIT: number;
-	export var SIGTRAP: number;
-	export var SIGIOT: number;
-	export var SIGBUS: number;
-	export var SIGUSR1: number;
-	export var SIGUSR2: number;
-	export var SIGPIPE: number;
-	export var SIGALRM: number;
-	export var SIGCHLD: number;
-	export var SIGSTKFLT: number;
-	export var SIGCONT: number;
-	export var SIGSTOP: number;
-	export var SIGTSTP: number;
-	export var SIGTTIN: number;
-	export var SIGTTOU: number;
-	export var SIGURG: number;
-	export var SIGXCPU: number;
-	export var SIGXFSZ: number;
-	export var SIGVTALRM: number;
-	export var SIGPROF: number;
-	export var SIGIO: number;
-	export var SIGPOLL: number;
-	export var SIGPWR: number;
-	export var SIGSYS: number;
-	export var SIGUNUSED: number;
-	export var defaultCoreCipherList: string;
-	export var defaultCipherList: string;
-	export var ENGINE_METHOD_RSA: number;
-	export var ALPN_ENABLED: number;
+    export var E2BIG: number;
+    export var EACCES: number;
+    export var EADDRINUSE: number;
+    export var EADDRNOTAVAIL: number;
+    export var EAFNOSUPPORT: number;
+    export var EAGAIN: number;
+    export var EALREADY: number;
+    export var EBADF: number;
+    export var EBADMSG: number;
+    export var EBUSY: number;
+    export var ECANCELED: number;
+    export var ECHILD: number;
+    export var ECONNABORTED: number;
+    export var ECONNREFUSED: number;
+    export var ECONNRESET: number;
+    export var EDEADLK: number;
+    export var EDESTADDRREQ: number;
+    export var EDOM: number;
+    export var EEXIST: number;
+    export var EFAULT: number;
+    export var EFBIG: number;
+    export var EHOSTUNREACH: number;
+    export var EIDRM: number;
+    export var EILSEQ: number;
+    export var EINPROGRESS: number;
+    export var EINTR: number;
+    export var EINVAL: number;
+    export var EIO: number;
+    export var EISCONN: number;
+    export var EISDIR: number;
+    export var ELOOP: number;
+    export var EMFILE: number;
+    export var EMLINK: number;
+    export var EMSGSIZE: number;
+    export var ENAMETOOLONG: number;
+    export var ENETDOWN: number;
+    export var ENETRESET: number;
+    export var ENETUNREACH: number;
+    export var ENFILE: number;
+    export var ENOBUFS: number;
+    export var ENODATA: number;
+    export var ENODEV: number;
+    export var ENOENT: number;
+    export var ENOEXEC: number;
+    export var ENOLCK: number;
+    export var ENOLINK: number;
+    export var ENOMEM: number;
+    export var ENOMSG: number;
+    export var ENOPROTOOPT: number;
+    export var ENOSPC: number;
+    export var ENOSR: number;
+    export var ENOSTR: number;
+    export var ENOSYS: number;
+    export var ENOTCONN: number;
+    export var ENOTDIR: number;
+    export var ENOTEMPTY: number;
+    export var ENOTSOCK: number;
+    export var ENOTSUP: number;
+    export var ENOTTY: number;
+    export var ENXIO: number;
+    export var EOPNOTSUPP: number;
+    export var EOVERFLOW: number;
+    export var EPERM: number;
+    export var EPIPE: number;
+    export var EPROTO: number;
+    export var EPROTONOSUPPORT: number;
+    export var EPROTOTYPE: number;
+    export var ERANGE: number;
+    export var EROFS: number;
+    export var ESPIPE: number;
+    export var ESRCH: number;
+    export var ETIME: number;
+    export var ETIMEDOUT: number;
+    export var ETXTBSY: number;
+    export var EWOULDBLOCK: number;
+    export var EXDEV: number;
+    export var WSAEINTR: number;
+    export var WSAEBADF: number;
+    export var WSAEACCES: number;
+    export var WSAEFAULT: number;
+    export var WSAEINVAL: number;
+    export var WSAEMFILE: number;
+    export var WSAEWOULDBLOCK: number;
+    export var WSAEINPROGRESS: number;
+    export var WSAEALREADY: number;
+    export var WSAENOTSOCK: number;
+    export var WSAEDESTADDRREQ: number;
+    export var WSAEMSGSIZE: number;
+    export var WSAEPROTOTYPE: number;
+    export var WSAENOPROTOOPT: number;
+    export var WSAEPROTONOSUPPORT: number;
+    export var WSAESOCKTNOSUPPORT: number;
+    export var WSAEOPNOTSUPP: number;
+    export var WSAEPFNOSUPPORT: number;
+    export var WSAEAFNOSUPPORT: number;
+    export var WSAEADDRINUSE: number;
+    export var WSAEADDRNOTAVAIL: number;
+    export var WSAENETDOWN: number;
+    export var WSAENETUNREACH: number;
+    export var WSAENETRESET: number;
+    export var WSAECONNABORTED: number;
+    export var WSAECONNRESET: number;
+    export var WSAENOBUFS: number;
+    export var WSAEISCONN: number;
+    export var WSAENOTCONN: number;
+    export var WSAESHUTDOWN: number;
+    export var WSAETOOMANYREFS: number;
+    export var WSAETIMEDOUT: number;
+    export var WSAECONNREFUSED: number;
+    export var WSAELOOP: number;
+    export var WSAENAMETOOLONG: number;
+    export var WSAEHOSTDOWN: number;
+    export var WSAEHOSTUNREACH: number;
+    export var WSAENOTEMPTY: number;
+    export var WSAEPROCLIM: number;
+    export var WSAEUSERS: number;
+    export var WSAEDQUOT: number;
+    export var WSAESTALE: number;
+    export var WSAEREMOTE: number;
+    export var WSASYSNOTREADY: number;
+    export var WSAVERNOTSUPPORTED: number;
+    export var WSANOTINITIALISED: number;
+    export var WSAEDISCON: number;
+    export var WSAENOMORE: number;
+    export var WSAECANCELLED: number;
+    export var WSAEINVALIDPROCTABLE: number;
+    export var WSAEINVALIDPROVIDER: number;
+    export var WSAEPROVIDERFAILEDINIT: number;
+    export var WSASYSCALLFAILURE: number;
+    export var WSASERVICE_NOT_FOUND: number;
+    export var WSATYPE_NOT_FOUND: number;
+    export var WSA_E_NO_MORE: number;
+    export var WSA_E_CANCELLED: number;
+    export var WSAEREFUSED: number;
+    export var SIGHUP: number;
+    export var SIGINT: number;
+    export var SIGILL: number;
+    export var SIGABRT: number;
+    export var SIGFPE: number;
+    export var SIGKILL: number;
+    export var SIGSEGV: number;
+    export var SIGTERM: number;
+    export var SIGBREAK: number;
+    export var SIGWINCH: number;
+    export var SSL_OP_ALL: number;
+    export var SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION: number;
+    export var SSL_OP_CIPHER_SERVER_PREFERENCE: number;
+    export var SSL_OP_CISCO_ANYCONNECT: number;
+    export var SSL_OP_COOKIE_EXCHANGE: number;
+    export var SSL_OP_CRYPTOPRO_TLSEXT_BUG: number;
+    export var SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS: number;
+    export var SSL_OP_EPHEMERAL_RSA: number;
+    export var SSL_OP_LEGACY_SERVER_CONNECT: number;
+    export var SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER: number;
+    export var SSL_OP_MICROSOFT_SESS_ID_BUG: number;
+    export var SSL_OP_MSIE_SSLV2_RSA_PADDING: number;
+    export var SSL_OP_NETSCAPE_CA_DN_BUG: number;
+    export var SSL_OP_NETSCAPE_CHALLENGE_BUG: number;
+    export var SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG: number;
+    export var SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG: number;
+    export var SSL_OP_NO_COMPRESSION: number;
+    export var SSL_OP_NO_QUERY_MTU: number;
+    export var SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION: number;
+    export var SSL_OP_NO_SSLv2: number;
+    export var SSL_OP_NO_SSLv3: number;
+    export var SSL_OP_NO_TICKET: number;
+    export var SSL_OP_NO_TLSv1: number;
+    export var SSL_OP_NO_TLSv1_1: number;
+    export var SSL_OP_NO_TLSv1_2: number;
+    export var SSL_OP_PKCS1_CHECK_1: number;
+    export var SSL_OP_PKCS1_CHECK_2: number;
+    export var SSL_OP_SINGLE_DH_USE: number;
+    export var SSL_OP_SINGLE_ECDH_USE: number;
+    export var SSL_OP_SSLEAY_080_CLIENT_DH_BUG: number;
+    export var SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG: number;
+    export var SSL_OP_TLS_BLOCK_PADDING_BUG: number;
+    export var SSL_OP_TLS_D5_BUG: number;
+    export var SSL_OP_TLS_ROLLBACK_BUG: number;
+    export var ENGINE_METHOD_DSA: number;
+    export var ENGINE_METHOD_DH: number;
+    export var ENGINE_METHOD_RAND: number;
+    export var ENGINE_METHOD_ECDH: number;
+    export var ENGINE_METHOD_ECDSA: number;
+    export var ENGINE_METHOD_CIPHERS: number;
+    export var ENGINE_METHOD_DIGESTS: number;
+    export var ENGINE_METHOD_STORE: number;
+    export var ENGINE_METHOD_PKEY_METHS: number;
+    export var ENGINE_METHOD_PKEY_ASN1_METHS: number;
+    export var ENGINE_METHOD_ALL: number;
+    export var ENGINE_METHOD_NONE: number;
+    export var DH_CHECK_P_NOT_SAFE_PRIME: number;
+    export var DH_CHECK_P_NOT_PRIME: number;
+    export var DH_UNABLE_TO_CHECK_GENERATOR: number;
+    export var DH_NOT_SUITABLE_GENERATOR: number;
+    export var NPN_ENABLED: number;
+    export var RSA_PKCS1_PADDING: number;
+    export var RSA_SSLV23_PADDING: number;
+    export var RSA_NO_PADDING: number;
+    export var RSA_PKCS1_OAEP_PADDING: number;
+    export var RSA_X931_PADDING: number;
+    export var RSA_PKCS1_PSS_PADDING: number;
+    export var POINT_CONVERSION_COMPRESSED: number;
+    export var POINT_CONVERSION_UNCOMPRESSED: number;
+    export var POINT_CONVERSION_HYBRID: number;
+    export var O_RDONLY: number;
+    export var O_WRONLY: number;
+    export var O_RDWR: number;
+    export var S_IFMT: number;
+    export var S_IFREG: number;
+    export var S_IFDIR: number;
+    export var S_IFCHR: number;
+    export var S_IFBLK: number;
+    export var S_IFIFO: number;
+    export var S_IFSOCK: number;
+    export var S_IRWXU: number;
+    export var S_IRUSR: number;
+    export var S_IWUSR: number;
+    export var S_IXUSR: number;
+    export var S_IRWXG: number;
+    export var S_IRGRP: number;
+    export var S_IWGRP: number;
+    export var S_IXGRP: number;
+    export var S_IRWXO: number;
+    export var S_IROTH: number;
+    export var S_IWOTH: number;
+    export var S_IXOTH: number;
+    export var S_IFLNK: number;
+    export var O_CREAT: number;
+    export var O_EXCL: number;
+    export var O_NOCTTY: number;
+    export var O_DIRECTORY: number;
+    export var O_NOATIME: number;
+    export var O_NOFOLLOW: number;
+    export var O_SYNC: number;
+    export var O_DSYNC: number;
+    export var O_SYMLINK: number;
+    export var O_DIRECT: number;
+    export var O_NONBLOCK: number;
+    export var O_TRUNC: number;
+    export var O_APPEND: number;
+    export var F_OK: number;
+    export var R_OK: number;
+    export var W_OK: number;
+    export var X_OK: number;
+    export var UV_UDP_REUSEADDR: number;
+    export var SIGQUIT: number;
+    export var SIGTRAP: number;
+    export var SIGIOT: number;
+    export var SIGBUS: number;
+    export var SIGUSR1: number;
+    export var SIGUSR2: number;
+    export var SIGPIPE: number;
+    export var SIGALRM: number;
+    export var SIGCHLD: number;
+    export var SIGSTKFLT: number;
+    export var SIGCONT: number;
+    export var SIGSTOP: number;
+    export var SIGTSTP: number;
+    export var SIGTTIN: number;
+    export var SIGTTOU: number;
+    export var SIGURG: number;
+    export var SIGXCPU: number;
+    export var SIGXFSZ: number;
+    export var SIGVTALRM: number;
+    export var SIGPROF: number;
+    export var SIGIO: number;
+    export var SIGPOLL: number;
+    export var SIGPWR: number;
+    export var SIGSYS: number;
+    export var SIGUNUSED: number;
+    export var defaultCoreCipherList: string;
+    export var defaultCipherList: string;
+    export var ENGINE_METHOD_RSA: number;
+    export var ALPN_ENABLED: number;
+}
+
+declare module "module" {
+    export = NodeJS.Module;
 }
 
 declare module "process" {
-	export = process;
+    export = process;
 }
 
+// tslint:disable-next-line:no-declare-current-package
 declare module "v8" {
-	interface HeapSpaceInfo {
-		space_name: string;
-		space_size: number;
-		space_used_size: number;
-		space_available_size: number;
-		physical_space_size: number;
-	}
-
-	//** Signifies if the --zap_code_space option is enabled or not.  1 == enabled, 0 == disabled. */
-	type DoesZapCodeSpaceFlag = 0 | 1;
-
-	interface HeapInfo {
-		total_heap_size: number;
-		total_heap_size_executable: number;
-		total_physical_size: number;
-		total_available_size: number;
-		used_heap_size: number;
-		heap_size_limit: number;
-		malloced_memory: number;
-		peak_malloced_memory: number;
-		does_zap_garbage: DoesZapCodeSpaceFlag;
-	}
-
-	export function getHeapStatistics(): HeapInfo;
-	export function getHeapSpaceStatistics(): HeapSpaceInfo[];
-	export function setFlagsFromString(flags: string): void;
+    interface HeapSpaceInfo {
+        space_name: string;
+        space_size: number;
+        space_used_size: number;
+        space_available_size: number;
+        physical_space_size: number;
+    }
+
+    // ** Signifies if the --zap_code_space option is enabled or not.  1 == enabled, 0 == disabled. */
+    type DoesZapCodeSpaceFlag = 0 | 1;
+
+    interface HeapInfo {
+        total_heap_size: number;
+        total_heap_size_executable: number;
+        total_physical_size: number;
+        total_available_size: number;
+        used_heap_size: number;
+        heap_size_limit: number;
+        malloced_memory: number;
+        peak_malloced_memory: number;
+        does_zap_garbage: DoesZapCodeSpaceFlag;
+    }
+
+    export function getHeapStatistics(): HeapInfo;
+    export function getHeapSpaceStatistics(): HeapSpaceInfo[];
+    export function setFlagsFromString(flags: string): void;
 }
 
 declare module "timers" {
-	export function setTimeout(callback: (...args: any[]) => void, ms: number, ...args: any[]): NodeJS.Timer;
-	export function clearTimeout(timeoutId: NodeJS.Timer): void;
-	export function setInterval(callback: (...args: any[]) => void, ms: number, ...args: any[]): NodeJS.Timer;
-	export function clearInterval(intervalId: NodeJS.Timer): void;
-	export function setImmediate(callback: (...args: any[]) => void, ...args: any[]): any;
-	export function clearImmediate(immediateId: any): void;
+    export function setTimeout(callback: (...args: any[]) => void, ms: number, ...args: any[]): NodeJS.Timer;
+    export namespace setTimeout {
+        export function __promisify__(ms: number): Promise<void>;
+        export function __promisify__<T>(ms: number, value: T): Promise<T>;
+    }
+    export function clearTimeout(timeoutId: NodeJS.Timer): void;
+    export function setInterval(callback: (...args: any[]) => void, ms: number, ...args: any[]): NodeJS.Timer;
+    export function clearInterval(intervalId: NodeJS.Timer): void;
+    export function setImmediate(callback: (...args: any[]) => void, ...args: any[]): any;
+    export namespace setImmediate {
+        export function __promisify__(): Promise<void>;
+        export function __promisify__<T>(value: T): Promise<T>;
+    }
+    export function clearImmediate(immediateId: any): void;
 }
 
 declare module "console" {
-	export = console;
+    export = console;
 }
 
 /**
- * _debugger module is not documented.
- * Source code is at https://github.com/nodejs/node/blob/master/lib/_debugger.js
+ * Async Hooks module: https://nodejs.org/api/async_hooks.html
  */
-declare module "_debugger" {
-	export interface Packet {
-		raw: string;
-		headers: string[];
-		body: Message;
-	}
-
-	export interface Message {
-		seq: number;
-		type: string;
-	}
-
-	export interface RequestInfo {
-		command: string;
-		arguments: any;
-	}
-
-	export interface Request extends Message, RequestInfo {
-	}
-
-	export interface Event extends Message {
-		event: string;
-		body?: any;
-	}
-
-	export interface Response extends Message {
-		request_seq: number;
-		success: boolean;
-		/** Contains error message if success === false. */
-		message?: string;
-		/** Contains message body if success === true. */
-		body?: any;
-	}
-
-	export interface BreakpointMessageBody {
-		type: string;
-		target: number;
-		line: number;
-	}
-
-	export class Protocol {
-		res: Packet;
-		state: string;
-		execute(data: string): void;
-		serialize(rq: Request): string;
-		onResponse: (pkt: Packet) => void;
-	}
-
-	export var NO_FRAME: number;
-	export var port: number;
-
-	export interface ScriptDesc {
-		name: string;
-		id: number;
-		isNative?: boolean;
-		handle?: number;
-		type: string;
-		lineOffset?: number;
-		columnOffset?: number;
-		lineCount?: number;
-	}
-
-	export interface Breakpoint {
-		id: number;
-		scriptId: number;
-		script: ScriptDesc;
-		line: number;
-		condition?: string;
-		scriptReq?: string;
-	}
-
-	export interface RequestHandler {
-		(err: boolean, body: Message, res: Packet): void;
-		request_seq?: number;
-	}
-
-	export interface ResponseBodyHandler {
-		(err: boolean, body?: any): void;
-		request_seq?: number;
-	}
-
-	export interface ExceptionInfo {
-		text: string;
-	}
-
-	export interface BreakResponse {
-		script?: ScriptDesc;
-		exception?: ExceptionInfo;
-		sourceLine: number;
-		sourceLineText: string;
-		sourceColumn: number;
-	}
-
-	export function SourceInfo(body: BreakResponse): string;
-
-	export interface ClientInstance extends NodeJS.EventEmitter {
-		protocol: Protocol;
-		scripts: ScriptDesc[];
-		handles: ScriptDesc[];
-		breakpoints: Breakpoint[];
-		currentSourceLine: number;
-		currentSourceColumn: number;
-		currentSourceLineText: string;
-		currentFrame: number;
-		currentScript: string;
-
-		connect(port: number, host: string): void;
-		req(req: any, cb: RequestHandler): void;
-		reqFrameEval(code: string, frame: number, cb: RequestHandler): void;
-		mirrorObject(obj: any, depth: number, cb: ResponseBodyHandler): void;
-		setBreakpoint(rq: BreakpointMessageBody, cb: RequestHandler): void;
-		clearBreakpoint(rq: Request, cb: RequestHandler): void;
-		listbreakpoints(cb: RequestHandler): void;
-		reqSource(from: number, to: number, cb: RequestHandler): void;
-		reqScripts(cb: any): void;
-		reqContinue(cb: RequestHandler): void;
-	}
-
-	export var Client: {
-		new(): ClientInstance
-	}
+declare module "async_hooks" {
+    /**
+     * Returns the asyncId of the current execution context.
+     */
+    export function executionAsyncId(): number;
+    /// @deprecated - replaced by executionAsyncId()
+    export function currentId(): number;
+
+    /**
+     * Returns the ID of the resource responsible for calling the callback that is currently being executed.
+     */
+    export function triggerAsyncId(): number;
+    /// @deprecated - replaced by triggerAsyncId()
+    export function triggerId(): number;
+
+    export interface HookCallbacks {
+        /**
+         * Called when a class is constructed that has the possibility to emit an asynchronous event.
+         * @param asyncId a unique ID for the async resource
+         * @param type the type of the async resource
+         * @param triggerAsyncId the unique ID of the async resource in whose execution context this async resource was created
+         * @param resource reference to the resource representing the async operation, needs to be released during destroy
+         */
+        init?(asyncId: number, type: string, triggerAsyncId: number, resource: Object): void;
+
+        /**
+         * When an asynchronous operation is initiated or completes a callback is called to notify the user.
+         * The before callback is called just before said callback is executed.
+         * @param asyncId the unique identifier assigned to the resource about to execute the callback.
+         */
+        before?(asyncId: number): void;
+
+        /**
+         * Called immediately after the callback specified in before is completed.
+         * @param asyncId the unique identifier assigned to the resource which has executed the callback.
+         */
+        after?(asyncId: number): void;
+
+        /**
+         * Called when a promise has resolve() called. This may not be in the same execution id
+         * as the promise itself.
+         * @param asyncId the unique id for the promise that was resolve()d.
+         */
+        promiseResolve?(asyncId: number): void;
+
+        /**
+         * Called after the resource corresponding to asyncId is destroyed
+         * @param asyncId a unique ID for the async resource
+         */
+        destroy?(asyncId: number): void;
+    }
+
+    export interface AsyncHook {
+        /**
+         * Enable the callbacks for a given AsyncHook instance. If no callbacks are provided enabling is a noop.
+         */
+        enable(): this;
+
+        /**
+         * Disable the callbacks for a given AsyncHook instance from the global pool of AsyncHook callbacks to be executed. Once a hook has been disabled it will not be called again until enabled.
+         */
+        disable(): this;
+    }
+
+    /**
+     * Registers functions to be called for different lifetime events of each async operation.
+     * @param options the callbacks to register
+     * @return an AsyncHooks instance used for disabling and enabling hooks
+     */
+    export function createHook(options: HookCallbacks): AsyncHook;
+
+    /**
+     * The class AsyncResource was designed to be extended by the embedder's async resources.
+     * Using this users can easily trigger the lifetime events of their own resources.
+     */
+    export class AsyncResource {
+        /**
+         * AsyncResource() is meant to be extended. Instantiating a
+         * new AsyncResource() also triggers init. If triggerAsyncId is omitted then
+         * async_hook.executionAsyncId() is used.
+         * @param type the name of this async resource type
+         * @param triggerAsyncId the unique ID of the async resource in whose execution context this async resource was created
+         */
+        constructor(type: string, triggerAsyncId?: number)
+
+        /**
+         * Call AsyncHooks before callbacks.
+         */
+        emitBefore(): void;
+
+        /**
+         * Call AsyncHooks after callbacks
+         */
+        emitAfter(): void;
+
+        /**
+         * Call AsyncHooks destroy callbacks.
+         */
+        emitDestroy(): void;
+
+        /**
+         * @return the unique ID assigned to this AsyncResource instance.
+         */
+        asyncId(): number;
+
+        /**
+         * @return the trigger ID for this AsyncResource instance.
+         */
+        triggerAsyncId(): number;
+    }
+}
+
+declare module "http2" {
+    import * as events from "events";
+    import * as fs from "fs";
+    import * as net from "net";
+    import * as stream from "stream";
+    import * as tls from "tls";
+    import * as url from "url";
+
+    import { IncomingHttpHeaders, OutgoingHttpHeaders } from "http";
+    export { IncomingHttpHeaders, OutgoingHttpHeaders } from "http";
+
+    // Http2Stream
+
+    export interface StreamPriorityOptions {
+        exclusive?: boolean;
+        parent?: number;
+        weight?: number;
+        silent?: boolean;
+    }
+
+    export interface StreamState {
+        localWindowSize?: number;
+        state?: number;
+        streamLocalClose?: number;
+        streamRemoteClose?: number;
+        sumDependencyWeight?: number;
+        weight?: number;
+    }
+
+    export interface ServerStreamResponseOptions {
+        endStream?: boolean;
+        getTrailers?: (trailers: OutgoingHttpHeaders) => void;
+    }
+
+    export interface StatOptions {
+        offset: number;
+        length: number;
+    }
+
+    export interface ServerStreamFileResponseOptions {
+        statCheck?: (stats: fs.Stats, headers: OutgoingHttpHeaders, statOptions: StatOptions) => void | boolean;
+        getTrailers?: (trailers: OutgoingHttpHeaders) => void;
+        offset?: number;
+        length?: number;
+    }
+
+    export interface ServerStreamFileResponseOptionsWithError extends ServerStreamFileResponseOptions {
+        onError?: (err: NodeJS.ErrnoException) => void;
+    }
+
+    export interface Http2Stream extends stream.Duplex {
+        readonly aborted: boolean;
+        readonly destroyed: boolean;
+        priority(options: StreamPriorityOptions): void;
+        readonly rstCode: number;
+        rstStream(code: number): void;
+        rstWithNoError(): void;
+        rstWithProtocolError(): void;
+        rstWithCancel(): void;
+        rstWithRefuse(): void;
+        rstWithInternalError(): void;
+        readonly session: Http2Session;
+        setTimeout(msecs: number, callback?: () => void): void;
+        readonly state: StreamState;
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "aborted", listener: () => void): this;
+        addListener(event: "close", listener: () => void): this;
+        addListener(event: "data", listener: (chunk: Buffer | string) => void): this;
+        addListener(event: "drain", listener: () => void): this;
+        addListener(event: "end", listener: () => void): this;
+        addListener(event: "error", listener: (err: Error) => void): this;
+        addListener(event: "finish", listener: () => void): this;
+        addListener(event: "frameError", listener: (frameType: number, errorCode: number) => void): this;
+        addListener(event: "pipe", listener: (src: stream.Readable) => void): this;
+        addListener(event: "unpipe", listener: (src: stream.Readable) => void): this;
+        addListener(event: "streamClosed", listener: (code: number) => void): this;
+        addListener(event: "timeout", listener: () => void): this;
+        addListener(event: "trailers", listener: (trailers: IncomingHttpHeaders, flags: number) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "aborted"): boolean;
+        emit(event: "close"): boolean;
+        emit(event: "data", chunk: Buffer | string): boolean;
+        emit(event: "drain"): boolean;
+        emit(event: "end"): boolean;
+        emit(event: "error", err: Error): boolean;
+        emit(event: "finish"): boolean;
+        emit(event: "frameError", frameType: number, errorCode: number): boolean;
+        emit(event: "pipe", src: stream.Readable): boolean;
+        emit(event: "unpipe", src: stream.Readable): boolean;
+        emit(event: "streamClosed", code: number): boolean;
+        emit(event: "timeout"): boolean;
+        emit(event: "trailers", trailers: IncomingHttpHeaders, flags: number): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "aborted", listener: () => void): this;
+        on(event: "close", listener: () => void): this;
+        on(event: "data", listener: (chunk: Buffer | string) => void): this;
+        on(event: "drain", listener: () => void): this;
+        on(event: "end", listener: () => void): this;
+        on(event: "error", listener: (err: Error) => void): this;
+        on(event: "finish", listener: () => void): this;
+        on(event: "frameError", listener: (frameType: number, errorCode: number) => void): this;
+        on(event: "pipe", listener: (src: stream.Readable) => void): this;
+        on(event: "unpipe", listener: (src: stream.Readable) => void): this;
+        on(event: "streamClosed", listener: (code: number) => void): this;
+        on(event: "timeout", listener: () => void): this;
+        on(event: "trailers", listener: (trailers: IncomingHttpHeaders, flags: number) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "aborted", listener: () => void): this;
+        once(event: "close", listener: () => void): this;
+        once(event: "data", listener: (chunk: Buffer | string) => void): this;
+        once(event: "drain", listener: () => void): this;
+        once(event: "end", listener: () => void): this;
+        once(event: "error", listener: (err: Error) => void): this;
+        once(event: "finish", listener: () => void): this;
+        once(event: "frameError", listener: (frameType: number, errorCode: number) => void): this;
+        once(event: "pipe", listener: (src: stream.Readable) => void): this;
+        once(event: "unpipe", listener: (src: stream.Readable) => void): this;
+        once(event: "streamClosed", listener: (code: number) => void): this;
+        once(event: "timeout", listener: () => void): this;
+        once(event: "trailers", listener: (trailers: IncomingHttpHeaders, flags: number) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "aborted", listener: () => void): this;
+        prependListener(event: "close", listener: () => void): this;
+        prependListener(event: "data", listener: (chunk: Buffer | string) => void): this;
+        prependListener(event: "drain", listener: () => void): this;
+        prependListener(event: "end", listener: () => void): this;
+        prependListener(event: "error", listener: (err: Error) => void): this;
+        prependListener(event: "finish", listener: () => void): this;
+        prependListener(event: "frameError", listener: (frameType: number, errorCode: number) => void): this;
+        prependListener(event: "pipe", listener: (src: stream.Readable) => void): this;
+        prependListener(event: "unpipe", listener: (src: stream.Readable) => void): this;
+        prependListener(event: "streamClosed", listener: (code: number) => void): this;
+        prependListener(event: "timeout", listener: () => void): this;
+        prependListener(event: "trailers", listener: (trailers: IncomingHttpHeaders, flags: number) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "aborted", listener: () => void): this;
+        prependOnceListener(event: "close", listener: () => void): this;
+        prependOnceListener(event: "data", listener: (chunk: Buffer | string) => void): this;
+        prependOnceListener(event: "drain", listener: () => void): this;
+        prependOnceListener(event: "end", listener: () => void): this;
+        prependOnceListener(event: "error", listener: (err: Error) => void): this;
+        prependOnceListener(event: "finish", listener: () => void): this;
+        prependOnceListener(event: "frameError", listener: (frameType: number, errorCode: number) => void): this;
+        prependOnceListener(event: "pipe", listener: (src: stream.Readable) => void): this;
+        prependOnceListener(event: "unpipe", listener: (src: stream.Readable) => void): this;
+        prependOnceListener(event: "streamClosed", listener: (code: number) => void): this;
+        prependOnceListener(event: "timeout", listener: () => void): this;
+        prependOnceListener(event: "trailers", listener: (trailers: IncomingHttpHeaders, flags: number) => void): this;
+    }
+
+    export interface ClientHttp2Stream extends Http2Stream {
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "headers", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        addListener(event: "push", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        addListener(event: "response", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "headers", headers: IncomingHttpHeaders, flags: number): boolean;
+        emit(event: "push", headers: IncomingHttpHeaders, flags: number): boolean;
+        emit(event: "response", headers: IncomingHttpHeaders, flags: number): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "headers", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        on(event: "push", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        on(event: "response", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "headers", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        once(event: "push", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        once(event: "response", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "headers", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        prependListener(event: "push", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        prependListener(event: "response", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "headers", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        prependOnceListener(event: "push", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+        prependOnceListener(event: "response", listener: (headers: IncomingHttpHeaders, flags: number) => void): this;
+    }
+
+    export interface ServerHttp2Stream extends Http2Stream {
+        additionalHeaders(headers: OutgoingHttpHeaders): void;
+        readonly headersSent: boolean;
+        readonly pushAllowed: boolean;
+        pushStream(headers: OutgoingHttpHeaders, callback?: (pushStream: ServerHttp2Stream) => void): void;
+        pushStream(headers: OutgoingHttpHeaders, options?: StreamPriorityOptions, callback?: (pushStream: ServerHttp2Stream) => void): void;
+        respond(headers?: OutgoingHttpHeaders, options?: ServerStreamResponseOptions): void;
+        respondWithFD(fd: number, headers?: OutgoingHttpHeaders, options?: ServerStreamFileResponseOptions): void;
+        respondWithFile(path: string, headers?: OutgoingHttpHeaders, options?: ServerStreamFileResponseOptionsWithError): void;
+    }
+
+    // Http2Session
+
+    export interface Settings {
+        headerTableSize?: number;
+        enablePush?: boolean;
+        initialWindowSize?: number;
+        maxFrameSize?: number;
+        maxConcurrentStreams?: number;
+        maxHeaderListSize?: number;
+    }
+
+    export interface ClientSessionRequestOptions {
+        endStream?: boolean;
+        exclusive?: boolean;
+        parent?: number;
+        weight?: number;
+        getTrailers?: (trailers: OutgoingHttpHeaders, flags: number) => void;
+    }
+
+    export interface SessionShutdownOptions {
+        graceful?: boolean;
+        errorCode?: number;
+        lastStreamID?: number;
+        opaqueData?: Buffer | Uint8Array;
+    }
+
+    export interface SessionState {
+        effectiveLocalWindowSize?: number;
+        effectiveRecvDataLength?: number;
+        nextStreamID?: number;
+        localWindowSize?: number;
+        lastProcStreamID?: number;
+        remoteWindowSize?: number;
+        outboundQueueSize?: number;
+        deflateDynamicTableSize?: number;
+        inflateDynamicTableSize?: number;
+    }
+
+    export interface Http2Session extends events.EventEmitter {
+        destroy(): void;
+        readonly destroyed: boolean;
+        readonly localSettings: Settings;
+        readonly pendingSettingsAck: boolean;
+        readonly remoteSettings: Settings;
+        rstStream(stream: Http2Stream, code?: number): void;
+        setTimeout(msecs: number, callback?: () => void): void;
+        shutdown(callback?: () => void): void;
+        shutdown(options: SessionShutdownOptions, callback?: () => void): void;
+        readonly socket: net.Socket | tls.TLSSocket;
+        readonly state: SessionState;
+        priority(stream: Http2Stream, options: StreamPriorityOptions): void;
+        settings(settings: Settings): void;
+        readonly type: number;
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "close", listener: () => void): this;
+        addListener(event: "error", listener: (err: Error) => void): this;
+        addListener(event: "frameError", listener: (frameType: number, errorCode: number, streamID: number) => void): this;
+        addListener(event: "goaway", listener: (errorCode: number, lastStreamID: number, opaqueData: Buffer) => void): this;
+        addListener(event: "localSettings", listener: (settings: Settings) => void): this;
+        addListener(event: "remoteSettings", listener: (settings: Settings) => void): this;
+        addListener(event: "socketError", listener: (err: Error) => void): this;
+        addListener(event: "timeout", listener: () => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "close"): boolean;
+        emit(event: "error", err: Error): boolean;
+        emit(event: "frameError", frameType: number, errorCode: number, streamID: number): boolean;
+        emit(event: "goaway", errorCode: number, lastStreamID: number, opaqueData: Buffer): boolean;
+        emit(event: "localSettings", settings: Settings): boolean;
+        emit(event: "remoteSettings", settings: Settings): boolean;
+        emit(event: "socketError", err: Error): boolean;
+        emit(event: "timeout"): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "close", listener: () => void): this;
+        on(event: "error", listener: (err: Error) => void): this;
+        on(event: "frameError", listener: (frameType: number, errorCode: number, streamID: number) => void): this;
+        on(event: "goaway", listener: (errorCode: number, lastStreamID: number, opaqueData: Buffer) => void): this;
+        on(event: "localSettings", listener: (settings: Settings) => void): this;
+        on(event: "remoteSettings", listener: (settings: Settings) => void): this;
+        on(event: "socketError", listener: (err: Error) => void): this;
+        on(event: "timeout", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "close", listener: () => void): this;
+        once(event: "error", listener: (err: Error) => void): this;
+        once(event: "frameError", listener: (frameType: number, errorCode: number, streamID: number) => void): this;
+        once(event: "goaway", listener: (errorCode: number, lastStreamID: number, opaqueData: Buffer) => void): this;
+        once(event: "localSettings", listener: (settings: Settings) => void): this;
+        once(event: "remoteSettings", listener: (settings: Settings) => void): this;
+        once(event: "socketError", listener: (err: Error) => void): this;
+        once(event: "timeout", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "close", listener: () => void): this;
+        prependListener(event: "error", listener: (err: Error) => void): this;
+        prependListener(event: "frameError", listener: (frameType: number, errorCode: number, streamID: number) => void): this;
+        prependListener(event: "goaway", listener: (errorCode: number, lastStreamID: number, opaqueData: Buffer) => void): this;
+        prependListener(event: "localSettings", listener: (settings: Settings) => void): this;
+        prependListener(event: "remoteSettings", listener: (settings: Settings) => void): this;
+        prependListener(event: "socketError", listener: (err: Error) => void): this;
+        prependListener(event: "timeout", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "close", listener: () => void): this;
+        prependOnceListener(event: "error", listener: (err: Error) => void): this;
+        prependOnceListener(event: "frameError", listener: (frameType: number, errorCode: number, streamID: number) => void): this;
+        prependOnceListener(event: "goaway", listener: (errorCode: number, lastStreamID: number, opaqueData: Buffer) => void): this;
+        prependOnceListener(event: "localSettings", listener: (settings: Settings) => void): this;
+        prependOnceListener(event: "remoteSettings", listener: (settings: Settings) => void): this;
+        prependOnceListener(event: "socketError", listener: (err: Error) => void): this;
+        prependOnceListener(event: "timeout", listener: () => void): this;
+    }
+
+    export interface ClientHttp2Session extends Http2Session {
+        request(headers?: OutgoingHttpHeaders, options?: ClientSessionRequestOptions): ClientHttp2Stream;
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "connect", listener: (session: ClientHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        addListener(event: "stream", listener: (stream: ClientHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "connect", session: ClientHttp2Session, socket: net.Socket | tls.TLSSocket): boolean;
+        emit(event: "stream", stream: ClientHttp2Stream, headers: IncomingHttpHeaders, flags: number): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "connect", listener: (session: ClientHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        on(event: "stream", listener: (stream: ClientHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "connect", listener: (session: ClientHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        once(event: "stream", listener: (stream: ClientHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "connect", listener: (session: ClientHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        prependListener(event: "stream", listener: (stream: ClientHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "connect", listener: (session: ClientHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        prependOnceListener(event: "stream", listener: (stream: ClientHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+    }
+
+    export interface ServerHttp2Session extends Http2Session {
+        readonly server: Http2Server | Http2SecureServer;
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "connect", listener: (session: ServerHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        addListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "connect", session: ServerHttp2Session, socket: net.Socket | tls.TLSSocket): boolean;
+        emit(event: "stream", stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "connect", listener: (session: ServerHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        on(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "connect", listener: (session: ServerHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        once(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "connect", listener: (session: ServerHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        prependListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "connect", listener: (session: ServerHttp2Session, socket: net.Socket | tls.TLSSocket) => void): this;
+        prependOnceListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+    }
+
+    // Http2Server
+
+    export interface SessionOptions {
+        maxDeflateDynamicTableSize?: number;
+        maxReservedRemoteStreams?: number;
+        maxSendHeaderBlockLength?: number;
+        paddingStrategy?: number;
+        peerMaxConcurrentStreams?: number;
+        selectPadding?: (frameLen: number, maxFrameLen: number) => number;
+        settings?: Settings;
+    }
+
+    export type ClientSessionOptions = SessionOptions;
+    export type ServerSessionOptions = SessionOptions;
+
+    export interface SecureClientSessionOptions extends ClientSessionOptions, tls.ConnectionOptions { }
+    export interface SecureServerSessionOptions extends ServerSessionOptions, tls.TlsOptions { }
+
+    export interface ServerOptions extends ServerSessionOptions {
+        allowHTTP1?: boolean;
+    }
+
+    export interface SecureServerOptions extends SecureServerSessionOptions {
+        allowHTTP1?: boolean;
+    }
+
+    export interface Http2Server extends net.Server {
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        addListener(event: "sessionError", listener: (err: Error) => void): this;
+        addListener(event: "socketError", listener: (err: Error) => void): this;
+        addListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        addListener(event: "timeout", listener: () => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "request", request: Http2ServerRequest, response: Http2ServerResponse): boolean;
+        emit(event: "sessionError", err: Error): boolean;
+        emit(event: "socketError", err: Error): boolean;
+        emit(event: "stream", stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number): boolean;
+        emit(event: "timeout"): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        on(event: "sessionError", listener: (err: Error) => void): this;
+        on(event: "socketError", listener: (err: Error) => void): this;
+        on(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        on(event: "timeout", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        once(event: "sessionError", listener: (err: Error) => void): this;
+        once(event: "socketError", listener: (err: Error) => void): this;
+        once(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        once(event: "timeout", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        prependListener(event: "sessionError", listener: (err: Error) => void): this;
+        prependListener(event: "socketError", listener: (err: Error) => void): this;
+        prependListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        prependListener(event: "timeout", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        prependOnceListener(event: "sessionError", listener: (err: Error) => void): this;
+        prependOnceListener(event: "socketError", listener: (err: Error) => void): this;
+        prependOnceListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        prependOnceListener(event: "timeout", listener: () => void): this;
+    }
+
+    export interface Http2SecureServer extends tls.Server {
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        addListener(event: "sessionError", listener: (err: Error) => void): this;
+        addListener(event: "socketError", listener: (err: Error) => void): this;
+        addListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        addListener(event: "timeout", listener: () => void): this;
+        addListener(event: "unknownProtocol", listener: (socket: tls.TLSSocket) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "request", request: Http2ServerRequest, response: Http2ServerResponse): boolean;
+        emit(event: "sessionError", err: Error): boolean;
+        emit(event: "socketError", err: Error): boolean;
+        emit(event: "stream", stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number): boolean;
+        emit(event: "timeout"): boolean;
+        emit(event: "unknownProtocol", socket: tls.TLSSocket): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        on(event: "sessionError", listener: (err: Error) => void): this;
+        on(event: "socketError", listener: (err: Error) => void): this;
+        on(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        on(event: "timeout", listener: () => void): this;
+        on(event: "unknownProtocol", listener: (socket: tls.TLSSocket) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        once(event: "sessionError", listener: (err: Error) => void): this;
+        once(event: "socketError", listener: (err: Error) => void): this;
+        once(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        once(event: "timeout", listener: () => void): this;
+        once(event: "unknownProtocol", listener: (socket: tls.TLSSocket) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        prependListener(event: "sessionError", listener: (err: Error) => void): this;
+        prependListener(event: "socketError", listener: (err: Error) => void): this;
+        prependListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        prependListener(event: "timeout", listener: () => void): this;
+        prependListener(event: "unknownProtocol", listener: (socket: tls.TLSSocket) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "request", listener: (request: Http2ServerRequest, response: Http2ServerResponse) => void): this;
+        prependOnceListener(event: "sessionError", listener: (err: Error) => void): this;
+        prependOnceListener(event: "socketError", listener: (err: Error) => void): this;
+        prependOnceListener(event: "stream", listener: (stream: ServerHttp2Stream, headers: IncomingHttpHeaders, flags: number) => void): this;
+        prependOnceListener(event: "timeout", listener: () => void): this;
+        prependOnceListener(event: "unknownProtocol", listener: (socket: tls.TLSSocket) => void): this;
+    }
+
+    export interface Http2ServerRequest extends stream.Readable {
+        headers: IncomingHttpHeaders;
+        httpVersion: string;
+        method: string;
+        rawHeaders: string[];
+        rawTrailers: string[];
+        setTimeout(msecs: number, callback?: () => void): void;
+        socket: net.Socket | tls.TLSSocket;
+        stream: ServerHttp2Stream;
+        trailers: IncomingHttpHeaders;
+        url: string;
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "aborted", hadError: boolean, code: number): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+    }
+
+    export interface Http2ServerResponse extends events.EventEmitter {
+        addTrailers(trailers: OutgoingHttpHeaders): void;
+        connection: net.Socket | tls.TLSSocket;
+        end(callback?: () => void): void;
+        end(data?: string | Buffer, callback?: () => void): void;
+        end(data?: string | Buffer, encoding?: string, callback?: () => void): void;
+        readonly finished: boolean;
+        getHeader(name: string): string;
+        getHeaderNames(): string[];
+        getHeaders(): OutgoingHttpHeaders;
+        hasHeader(name: string): boolean;
+        readonly headersSent: boolean;
+        removeHeader(name: string): void;
+        sendDate: boolean;
+        setHeader(name: string, value: number | string | string[]): void;
+        setTimeout(msecs: number, callback?: () => void): void;
+        socket: net.Socket | tls.TLSSocket;
+        statusCode: number;
+        statusMessage: '';
+        stream: ServerHttp2Stream;
+        write(chunk: string | Buffer, callback?: (err: Error) => void): boolean;
+        write(chunk: string | Buffer, encoding?: string, callback?: (err: Error) => void): boolean;
+        writeContinue(): void;
+        writeHead(statusCode: number, headers?: OutgoingHttpHeaders): void;
+        writeHead(statusCode: number, statusMessage?: string, headers?: OutgoingHttpHeaders): void;
+        createPushResponse(headers: OutgoingHttpHeaders, callback: (err: Error | null, res: Http2ServerResponse) => void): void;
+
+        addListener(event: string, listener: (...args: any[]) => void): this;
+        addListener(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+        addListener(event: "close", listener: () => void): this;
+        addListener(event: "drain", listener: () => void): this;
+        addListener(event: "error", listener: (error: Error) => void): this;
+        addListener(event: "finish", listener: () => void): this;
+
+        emit(event: string | symbol, ...args: any[]): boolean;
+        emit(event: "aborted", hadError: boolean, code: number): boolean;
+        emit(event: "close"): boolean;
+        emit(event: "drain"): boolean;
+        emit(event: "error", error: Error): boolean;
+        emit(event: "finish"): boolean;
+
+        on(event: string, listener: (...args: any[]) => void): this;
+        on(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+        on(event: "close", listener: () => void): this;
+        on(event: "drain", listener: () => void): this;
+        on(event: "error", listener: (error: Error) => void): this;
+        on(event: "finish", listener: () => void): this;
+
+        once(event: string, listener: (...args: any[]) => void): this;
+        once(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+        once(event: "close", listener: () => void): this;
+        once(event: "drain", listener: () => void): this;
+        once(event: "error", listener: (error: Error) => void): this;
+        once(event: "finish", listener: () => void): this;
+
+        prependListener(event: string, listener: (...args: any[]) => void): this;
+        prependListener(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+        prependListener(event: "close", listener: () => void): this;
+        prependListener(event: "drain", listener: () => void): this;
+        prependListener(event: "error", listener: (error: Error) => void): this;
+        prependListener(event: "finish", listener: () => void): this;
+
+        prependOnceListener(event: string, listener: (...args: any[]) => void): this;
+        prependOnceListener(event: "aborted", listener: (hadError: boolean, code: number) => void): this;
+        prependOnceListener(event: "close", listener: () => void): this;
+        prependOnceListener(event: "drain", listener: () => void): this;
+        prependOnceListener(event: "error", listener: (error: Error) => void): this;
+        prependOnceListener(event: "finish", listener: () => void): this;
+    }
+
+    // Public API
+
+    export namespace constants {
+        export const NGHTTP2_SESSION_SERVER: number;
+        export const NGHTTP2_SESSION_CLIENT: number;
+        export const NGHTTP2_STREAM_STATE_IDLE: number;
+        export const NGHTTP2_STREAM_STATE_OPEN: number;
+        export const NGHTTP2_STREAM_STATE_RESERVED_LOCAL: number;
+        export const NGHTTP2_STREAM_STATE_RESERVED_REMOTE: number;
+        export const NGHTTP2_STREAM_STATE_HALF_CLOSED_LOCAL: number;
+        export const NGHTTP2_STREAM_STATE_HALF_CLOSED_REMOTE: number;
+        export const NGHTTP2_STREAM_STATE_CLOSED: number;
+        export const NGHTTP2_NO_ERROR: number;
+        export const NGHTTP2_PROTOCOL_ERROR: number;
+        export const NGHTTP2_INTERNAL_ERROR: number;
+        export const NGHTTP2_FLOW_CONTROL_ERROR: number;
+        export const NGHTTP2_SETTINGS_TIMEOUT: number;
+        export const NGHTTP2_STREAM_CLOSED: number;
+        export const NGHTTP2_FRAME_SIZE_ERROR: number;
+        export const NGHTTP2_REFUSED_STREAM: number;
+        export const NGHTTP2_CANCEL: number;
+        export const NGHTTP2_COMPRESSION_ERROR: number;
+        export const NGHTTP2_CONNECT_ERROR: number;
+        export const NGHTTP2_ENHANCE_YOUR_CALM: number;
+        export const NGHTTP2_INADEQUATE_SECURITY: number;
+        export const NGHTTP2_HTTP_1_1_REQUIRED: number;
+        export const NGHTTP2_ERR_FRAME_SIZE_ERROR: number;
+        export const NGHTTP2_FLAG_NONE: number;
+        export const NGHTTP2_FLAG_END_STREAM: number;
+        export const NGHTTP2_FLAG_END_HEADERS: number;
+        export const NGHTTP2_FLAG_ACK: number;
+        export const NGHTTP2_FLAG_PADDED: number;
+        export const NGHTTP2_FLAG_PRIORITY: number;
+        export const DEFAULT_SETTINGS_HEADER_TABLE_SIZE: number;
+        export const DEFAULT_SETTINGS_ENABLE_PUSH: number;
+        export const DEFAULT_SETTINGS_INITIAL_WINDOW_SIZE: number;
+        export const DEFAULT_SETTINGS_MAX_FRAME_SIZE: number;
+        export const MAX_MAX_FRAME_SIZE: number;
+        export const MIN_MAX_FRAME_SIZE: number;
+        export const MAX_INITIAL_WINDOW_SIZE: number;
+        export const NGHTTP2_DEFAULT_WEIGHT: number;
+        export const NGHTTP2_SETTINGS_HEADER_TABLE_SIZE: number;
+        export const NGHTTP2_SETTINGS_ENABLE_PUSH: number;
+        export const NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS: number;
+        export const NGHTTP2_SETTINGS_INITIAL_WINDOW_SIZE: number;
+        export const NGHTTP2_SETTINGS_MAX_FRAME_SIZE: number;
+        export const NGHTTP2_SETTINGS_MAX_HEADER_LIST_SIZE: number;
+        export const PADDING_STRATEGY_NONE: number;
+        export const PADDING_STRATEGY_MAX: number;
+        export const PADDING_STRATEGY_CALLBACK: number;
+        export const HTTP2_HEADER_STATUS: string;
+        export const HTTP2_HEADER_METHOD: string;
+        export const HTTP2_HEADER_AUTHORITY: string;
+        export const HTTP2_HEADER_SCHEME: string;
+        export const HTTP2_HEADER_PATH: string;
+        export const HTTP2_HEADER_ACCEPT_CHARSET: string;
+        export const HTTP2_HEADER_ACCEPT_ENCODING: string;
+        export const HTTP2_HEADER_ACCEPT_LANGUAGE: string;
+        export const HTTP2_HEADER_ACCEPT_RANGES: string;
+        export const HTTP2_HEADER_ACCEPT: string;
+        export const HTTP2_HEADER_ACCESS_CONTROL_ALLOW_ORIGIN: string;
+        export const HTTP2_HEADER_AGE: string;
+        export const HTTP2_HEADER_ALLOW: string;
+        export const HTTP2_HEADER_AUTHORIZATION: string;
+        export const HTTP2_HEADER_CACHE_CONTROL: string;
+        export const HTTP2_HEADER_CONNECTION: string;
+        export const HTTP2_HEADER_CONTENT_DISPOSITION: string;
+        export const HTTP2_HEADER_CONTENT_ENCODING: string;
+        export const HTTP2_HEADER_CONTENT_LANGUAGE: string;
+        export const HTTP2_HEADER_CONTENT_LENGTH: string;
+        export const HTTP2_HEADER_CONTENT_LOCATION: string;
+        export const HTTP2_HEADER_CONTENT_MD5: string;
+        export const HTTP2_HEADER_CONTENT_RANGE: string;
+        export const HTTP2_HEADER_CONTENT_TYPE: string;
+        export const HTTP2_HEADER_COOKIE: string;
+        export const HTTP2_HEADER_DATE: string;
+        export const HTTP2_HEADER_ETAG: string;
+        export const HTTP2_HEADER_EXPECT: string;
+        export const HTTP2_HEADER_EXPIRES: string;
+        export const HTTP2_HEADER_FROM: string;
+        export const HTTP2_HEADER_HOST: string;
+        export const HTTP2_HEADER_IF_MATCH: string;
+        export const HTTP2_HEADER_IF_MODIFIED_SINCE: string;
+        export const HTTP2_HEADER_IF_NONE_MATCH: string;
+        export const HTTP2_HEADER_IF_RANGE: string;
+        export const HTTP2_HEADER_IF_UNMODIFIED_SINCE: string;
+        export const HTTP2_HEADER_LAST_MODIFIED: string;
+        export const HTTP2_HEADER_LINK: string;
+        export const HTTP2_HEADER_LOCATION: string;
+        export const HTTP2_HEADER_MAX_FORWARDS: string;
+        export const HTTP2_HEADER_PREFER: string;
+        export const HTTP2_HEADER_PROXY_AUTHENTICATE: string;
+        export const HTTP2_HEADER_PROXY_AUTHORIZATION: string;
+        export const HTTP2_HEADER_RANGE: string;
+        export const HTTP2_HEADER_REFERER: string;
+        export const HTTP2_HEADER_REFRESH: string;
+        export const HTTP2_HEADER_RETRY_AFTER: string;
+        export const HTTP2_HEADER_SERVER: string;
+        export const HTTP2_HEADER_SET_COOKIE: string;
+        export const HTTP2_HEADER_STRICT_TRANSPORT_SECURITY: string;
+        export const HTTP2_HEADER_TRANSFER_ENCODING: string;
+        export const HTTP2_HEADER_TE: string;
+        export const HTTP2_HEADER_UPGRADE: string;
+        export const HTTP2_HEADER_USER_AGENT: string;
+        export const HTTP2_HEADER_VARY: string;
+        export const HTTP2_HEADER_VIA: string;
+        export const HTTP2_HEADER_WWW_AUTHENTICATE: string;
+        export const HTTP2_HEADER_HTTP2_SETTINGS: string;
+        export const HTTP2_HEADER_KEEP_ALIVE: string;
+        export const HTTP2_HEADER_PROXY_CONNECTION: string;
+        export const HTTP2_METHOD_ACL: string;
+        export const HTTP2_METHOD_BASELINE_CONTROL: string;
+        export const HTTP2_METHOD_BIND: string;
+        export const HTTP2_METHOD_CHECKIN: string;
+        export const HTTP2_METHOD_CHECKOUT: string;
+        export const HTTP2_METHOD_CONNECT: string;
+        export const HTTP2_METHOD_COPY: string;
+        export const HTTP2_METHOD_DELETE: string;
+        export const HTTP2_METHOD_GET: string;
+        export const HTTP2_METHOD_HEAD: string;
+        export const HTTP2_METHOD_LABEL: string;
+        export const HTTP2_METHOD_LINK: string;
+        export const HTTP2_METHOD_LOCK: string;
+        export const HTTP2_METHOD_MERGE: string;
+        export const HTTP2_METHOD_MKACTIVITY: string;
+        export const HTTP2_METHOD_MKCALENDAR: string;
+        export const HTTP2_METHOD_MKCOL: string;
+        export const HTTP2_METHOD_MKREDIRECTREF: string;
+        export const HTTP2_METHOD_MKWORKSPACE: string;
+        export const HTTP2_METHOD_MOVE: string;
+        export const HTTP2_METHOD_OPTIONS: string;
+        export const HTTP2_METHOD_ORDERPATCH: string;
+        export const HTTP2_METHOD_PATCH: string;
+        export const HTTP2_METHOD_POST: string;
+        export const HTTP2_METHOD_PRI: string;
+        export const HTTP2_METHOD_PROPFIND: string;
+        export const HTTP2_METHOD_PROPPATCH: string;
+        export const HTTP2_METHOD_PUT: string;
+        export const HTTP2_METHOD_REBIND: string;
+        export const HTTP2_METHOD_REPORT: string;
+        export const HTTP2_METHOD_SEARCH: string;
+        export const HTTP2_METHOD_TRACE: string;
+        export const HTTP2_METHOD_UNBIND: string;
+        export const HTTP2_METHOD_UNCHECKOUT: string;
+        export const HTTP2_METHOD_UNLINK: string;
+        export const HTTP2_METHOD_UNLOCK: string;
+        export const HTTP2_METHOD_UPDATE: string;
+        export const HTTP2_METHOD_UPDATEREDIRECTREF: string;
+        export const HTTP2_METHOD_VERSION_CONTROL: string;
+        export const HTTP_STATUS_CONTINUE: number;
+        export const HTTP_STATUS_SWITCHING_PROTOCOLS: number;
+        export const HTTP_STATUS_PROCESSING: number;
+        export const HTTP_STATUS_OK: number;
+        export const HTTP_STATUS_CREATED: number;
+        export const HTTP_STATUS_ACCEPTED: number;
+        export const HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION: number;
+        export const HTTP_STATUS_NO_CONTENT: number;
+        export const HTTP_STATUS_RESET_CONTENT: number;
+        export const HTTP_STATUS_PARTIAL_CONTENT: number;
+        export const HTTP_STATUS_MULTI_STATUS: number;
+        export const HTTP_STATUS_ALREADY_REPORTED: number;
+        export const HTTP_STATUS_IM_USED: number;
+        export const HTTP_STATUS_MULTIPLE_CHOICES: number;
+        export const HTTP_STATUS_MOVED_PERMANENTLY: number;
+        export const HTTP_STATUS_FOUND: number;
+        export const HTTP_STATUS_SEE_OTHER: number;
+        export const HTTP_STATUS_NOT_MODIFIED: number;
+        export const HTTP_STATUS_USE_PROXY: number;
+        export const HTTP_STATUS_TEMPORARY_REDIRECT: number;
+        export const HTTP_STATUS_PERMANENT_REDIRECT: number;
+        export const HTTP_STATUS_BAD_REQUEST: number;
+        export const HTTP_STATUS_UNAUTHORIZED: number;
+        export const HTTP_STATUS_PAYMENT_REQUIRED: number;
+        export const HTTP_STATUS_FORBIDDEN: number;
+        export const HTTP_STATUS_NOT_FOUND: number;
+        export const HTTP_STATUS_METHOD_NOT_ALLOWED: number;
+        export const HTTP_STATUS_NOT_ACCEPTABLE: number;
+        export const HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED: number;
+        export const HTTP_STATUS_REQUEST_TIMEOUT: number;
+        export const HTTP_STATUS_CONFLICT: number;
+        export const HTTP_STATUS_GONE: number;
+        export const HTTP_STATUS_LENGTH_REQUIRED: number;
+        export const HTTP_STATUS_PRECONDITION_FAILED: number;
+        export const HTTP_STATUS_PAYLOAD_TOO_LARGE: number;
+        export const HTTP_STATUS_URI_TOO_LONG: number;
+        export const HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE: number;
+        export const HTTP_STATUS_RANGE_NOT_SATISFIABLE: number;
+        export const HTTP_STATUS_EXPECTATION_FAILED: number;
+        export const HTTP_STATUS_TEAPOT: number;
+        export const HTTP_STATUS_MISDIRECTED_REQUEST: number;
+        export const HTTP_STATUS_UNPROCESSABLE_ENTITY: number;
+        export const HTTP_STATUS_LOCKED: number;
+        export const HTTP_STATUS_FAILED_DEPENDENCY: number;
+        export const HTTP_STATUS_UNORDERED_COLLECTION: number;
+        export const HTTP_STATUS_UPGRADE_REQUIRED: number;
+        export const HTTP_STATUS_PRECONDITION_REQUIRED: number;
+        export const HTTP_STATUS_TOO_MANY_REQUESTS: number;
+        export const HTTP_STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE: number;
+        export const HTTP_STATUS_UNAVAILABLE_FOR_LEGAL_REASONS: number;
+        export const HTTP_STATUS_INTERNAL_SERVER_ERROR: number;
+        export const HTTP_STATUS_NOT_IMPLEMENTED: number;
+        export const HTTP_STATUS_BAD_GATEWAY: number;
+        export const HTTP_STATUS_SERVICE_UNAVAILABLE: number;
+        export const HTTP_STATUS_GATEWAY_TIMEOUT: number;
+        export const HTTP_STATUS_HTTP_VERSION_NOT_SUPPORTED: number;
+        export const HTTP_STATUS_VARIANT_ALSO_NEGOTIATES: number;
+        export const HTTP_STATUS_INSUFFICIENT_STORAGE: number;
+        export const HTTP_STATUS_LOOP_DETECTED: number;
+        export const HTTP_STATUS_BANDWIDTH_LIMIT_EXCEEDED: number;
+        export const HTTP_STATUS_NOT_EXTENDED: number;
+        export const HTTP_STATUS_NETWORK_AUTHENTICATION_REQUIRED: number;
+    }
+
+    export function getDefaultSettings(): Settings;
+    export function getPackedSettings(settings: Settings): Settings;
+    export function getUnpackedSettings(buf: Buffer | Uint8Array): Settings;
+
+    export function createServer(onRequestHandler?: (request: Http2ServerRequest, response: Http2ServerResponse) => void): Http2Server;
+    export function createServer(options: ServerOptions, onRequestHandler?: (request: Http2ServerRequest, response: Http2ServerResponse) => void): Http2Server;
+
+    export function createSecureServer(onRequestHandler?: (request: Http2ServerRequest, response: Http2ServerResponse) => void): Http2SecureServer;
+    export function createSecureServer(options: SecureServerOptions, onRequestHandler?: (request: Http2ServerRequest, response: Http2ServerResponse) => void): Http2SecureServer;
+
+    export function connect(authority: string | url.URL, listener?: (session: ClientHttp2Session, socket: net.Socket | tls.TLSSocket) => void): ClientHttp2Session;
+    export function connect(authority: string | url.URL, options?: ClientSessionOptions | SecureClientSessionOptions, listener?: (session: ClientHttp2Session, socket: net.Socket | tls.TLSSocket) => void): ClientHttp2Session;
 }
+
+declare module "perf_hooks" {
+    export interface PerformanceEntry {
+        /**
+         * The total number of milliseconds elapsed for this entry.
+         * This value will not be meaningful for all Performance Entry types.
+         */
+        readonly duration: number;
+
+        /**
+         * The name of the performance entry.
+         */
+        readonly name: string;
+
+        /**
+         * The high resolution millisecond timestamp marking the starting time of the Performance Entry.
+         */
+        readonly startTime: number;
+
+        /**
+         * The type of the performance entry.
+         * Currently it may be one of: 'node', 'mark', 'measure', 'gc', or 'function'.
+         */
+        readonly entryType: string;
+
+        /**
+         * When performanceEntry.entryType is equal to 'gc', the performance.kind property identifies
+         * the type of garbage collection operation that occurred.
+         * The value may be one of perf_hooks.constants.
+         */
+        readonly kind?: number;
+    }
+
+    export interface PerformanceNodeTiming extends PerformanceEntry {
+        /**
+         * The high resolution millisecond timestamp at which the Node.js process completed bootstrap.
+         */
+        readonly bootstrapComplete: number;
+
+        /**
+         * The high resolution millisecond timestamp at which cluster processing ended.
+         */
+        readonly clusterSetupEnd: number;
+
+        /**
+         * The high resolution millisecond timestamp at which cluster processing started.
+         */
+        readonly clusterSetupStart: number;
+
+        /**
+         * The high resolution millisecond timestamp at which the Node.js event loop exited.
+         */
+        readonly loopExit: number;
+
+        /**
+         * The high resolution millisecond timestamp at which the Node.js event loop started.
+         */
+        readonly loopStart: number;
+
+        /**
+         * The high resolution millisecond timestamp at which main module load ended.
+         */
+        readonly moduleLoadEnd: number;
+
+        /**
+         * The high resolution millisecond timestamp at which main module load started.
+         */
+        readonly moduleLoadStart: number;
+
+        /**
+         * The high resolution millisecond timestamp at which the Node.js process was initialized.
+         */
+        readonly nodeStart: number;
+
+        /**
+         * The high resolution millisecond timestamp at which preload module load ended.
+         */
+        readonly preloadModuleLoadEnd: number;
+
+        /**
+         * The high resolution millisecond timestamp at which preload module load started.
+         */
+        readonly preloadModuleLoadStart: number;
+
+        /**
+         * The high resolution millisecond timestamp at which third_party_main processing ended.
+         */
+        readonly thirdPartyMainEnd: number;
+
+        /**
+         * The high resolution millisecond timestamp at which third_party_main processing started.
+         */
+        readonly thirdPartyMainStart: number;
+
+        /**
+         * The high resolution millisecond timestamp at which the V8 platform was initialized.
+         */
+        readonly v8Start: number;
+    }
+
+    export interface Performance {
+        /**
+         * If name is not provided, removes all PerformanceFunction objects from the Performance Timeline.
+         * If name is provided, removes entries with name.
+         * @param name
+         */
+        clearFunctions(name?: string): void;
+
+        /**
+         * If name is not provided, removes all PerformanceMark objects from the Performance Timeline.
+         * If name is provided, removes only the named mark.
+         * @param name
+         */
+        clearMarks(name?: string): void;
+
+        /**
+         * If name is not provided, removes all PerformanceMeasure objects from the Performance Timeline.
+         * If name is provided, removes only objects whose performanceEntry.name matches name.
+         */
+        clearMeasures(name?: string): void;
+
+        /**
+         * Returns a list of all PerformanceEntry objects in chronological order with respect to performanceEntry.startTime.
+         * @return list of all PerformanceEntry objects
+         */
+        getEntries(): PerformanceEntry[];
+
+        /**
+         * Returns a list of all PerformanceEntry objects in chronological order with respect to performanceEntry.startTime
+         * whose performanceEntry.name is equal to name, and optionally, whose performanceEntry.entryType is equal to type.
+         * @param name
+         * @param type
+         * @return list of all PerformanceEntry objects
+         */
+        getEntriesByName(name: string, type?: string): PerformanceEntry[];
+
+        /**
+         * Returns a list of all PerformanceEntry objects in chronological order with respect to performanceEntry.startTime
+         * whose performanceEntry.entryType is equal to type.
+         * @param type
+         * @return list of all PerformanceEntry objects
+         */
+        getEntriesByType(type: string): PerformanceEntry[];
+
+        /**
+         * Creates a new PerformanceMark entry in the Performance Timeline.
+         * A PerformanceMark is a subclass of PerformanceEntry whose performanceEntry.entryType is always 'mark',
+         * and whose performanceEntry.duration is always 0.
+         * Performance marks are used to mark specific significant moments in the Performance Timeline.
+         * @param name
+         */
+        mark(name?: string): void;
+
+        /**
+         * Creates a new PerformanceMeasure entry in the Performance Timeline.
+         * A PerformanceMeasure is a subclass of PerformanceEntry whose performanceEntry.entryType is always 'measure',
+         * and whose performanceEntry.duration measures the number of milliseconds elapsed since startMark and endMark.
+         *
+         * The startMark argument may identify any existing PerformanceMark in the the Performance Timeline, or may identify
+         * any of the timestamp properties provided by the PerformanceNodeTiming class. If the named startMark does not exist,
+         * then startMark is set to timeOrigin by default.
+         *
+         * The endMark argument must identify any existing PerformanceMark in the the Performance Timeline or any of the timestamp
+         * properties provided by the PerformanceNodeTiming class. If the named endMark does not exist, an error will be thrown.
+         * @param name
+         * @param startMark
+         * @param endMark
+         */
+        measure(name: string, startMark: string, endMark: string): void;
+
+        /**
+         * An instance of the PerformanceNodeTiming class that provides performance metrics for specific Node.js operational milestones.
+         */
+        readonly nodeTiming: PerformanceNodeTiming;
+
+        /**
+         * @return the current high resolution millisecond timestamp
+         */
+        now(): number;
+
+        /**
+         * The timeOrigin specifies the high resolution millisecond timestamp from which all performance metric durations are measured.
+         */
+        readonly timeOrigin: number;
+
+        /**
+         * Wraps a function within a new function that measures the running time of the wrapped function.
+         * A PerformanceObserver must be subscribed to the 'function' event type in order for the timing details to be accessed.
+         * @param fn
+         */
+        timerify<T extends (...optionalParams: any[]) => any>(fn: T): T;
+    }
+
+    export interface PerformanceObserverEntryList {
+        /**
+         * @return a list of PerformanceEntry objects in chronological order with respect to performanceEntry.startTime.
+         */
+        getEntries(): PerformanceEntry[];
+
+        /**
+         * @return a list of PerformanceEntry objects in chronological order with respect to performanceEntry.startTime
+         * whose performanceEntry.name is equal to name, and optionally, whose performanceEntry.entryType is equal to type.
+         */
+        getEntriesByName(name: string, type?: string): PerformanceEntry[];
+
+        /**
+         * @return Returns a list of PerformanceEntry objects in chronological order with respect to performanceEntry.startTime
+         * whose performanceEntry.entryType is equal to type.
+         */
+        getEntriesByType(type: string): PerformanceEntry[];
+    }
+
+    export type PerformanceObserverCallback = (list: PerformanceObserverEntryList, observer: PerformanceObserver) => void;
+
+    export class PerformanceObserver {
+        constructor(callback: PerformanceObserverCallback);
+
+        /**
+         * Disconnects the PerformanceObserver instance from all notifications.
+         */
+        disconnect(): void;
+
+        /**
+         * Subscribes the PerformanceObserver instance to notifications of new PerformanceEntry instances identified by options.entryTypes.
+         * When options.buffered is false, the callback will be invoked once for every PerformanceEntry instance.
+         * Property buffered defaults to false.
+         * @param options
+         */
+        observe(options: { entryTypes: string[], buffered?: boolean }): void;
+    }
+
+    export namespace constants {
+        export const NODE_PERFORMANCE_GC_MAJOR: number;
+        export const NODE_PERFORMANCE_GC_MINOR: number;
+        export const NODE_PERFORMANCE_GC_INCREMENTAL: number;
+        export const NODE_PERFORMANCE_GC_WEAKCB: number;
+    }
+
+    const performance: Performance;
+}
\ No newline at end of file
diff --git a/src/vs/code/electron-browser/processExplorer/processExplorerMain.ts b/src/vs/code/electron-browser/processExplorer/processExplorerMain.ts
index 9c491c0dd95dd..fe402f187926e 100644
--- a/src/vs/code/electron-browser/processExplorer/processExplorerMain.ts
+++ b/src/vs/code/electron-browser/processExplorer/processExplorerMain.ts
@@ -190,7 +190,7 @@ function showContextMenu(e) {
 		}));
 	}
 
-	menu.popup(remote.getCurrentWindow());
+	menu.popup({ window: remote.getCurrentWindow() });
 }
 
 export function startup(data: ProcessExplorerData): void {
diff --git a/src/vs/code/electron-main/window.ts b/src/vs/code/electron-main/window.ts
index 5f99b37e2e2ab..edb7e279de0cc 100644
--- a/src/vs/code/electron-main/window.ts
+++ b/src/vs/code/electron-main/window.ts
@@ -187,23 +187,6 @@ export class CodeWindow implements ICodeWindow {
 		this._win = new BrowserWindow(options);
 		this._id = this._win.id;
 
-		// Bug in Electron (https://github.com/electron/electron/issues/10862). On multi-monitor setups,
-		// it can happen that the position we set to the window is not the correct one on the display.
-		// To workaround, we ask the window for its position and set it again if not matching.
-		// This only applies if the window is not fullscreen or maximized and multiple monitors are used.
-		if (isWindows && !isFullscreenOrMaximized) {
-			try {
-				if (screen.getAllDisplays().length > 1) {
-					const [x, y] = this._win.getPosition();
-					if (x !== this.windowState.x || y !== this.windowState.y) {
-						this._win.setPosition(this.windowState.x, this.windowState.y, false);
-					}
-				}
-			} catch (err) {
-				this.logService.warn(`Unexpected error fixing window position on windows with multiple windows: ${err}\n${err.stack}`);
-			}
-		}
-
 		if (useCustomTitleStyle) {
 			this._win.setSheetOffset(22); // offset dialogs by the height of the custom title bar if we have any
 		}
@@ -960,11 +943,6 @@ export class CodeWindow implements ICodeWindow {
 			this.touchBarGroups.push(groupTouchBar);
 		}
 
-		// Ugly workaround for native crash on macOS 10.12.1. We are not
-		// leveraging the API for changing the ESC touch bar item.
-		// See https://github.com/electron/electron/issues/10442
-		(<any>this._win)._setEscapeTouchBarItem = () => { };
-
 		this._win.setTouchBar(new TouchBar({ items: this.touchBarGroups }));
 	}
 
diff --git a/src/vs/platform/update/electron-main/updateService.darwin.ts b/src/vs/platform/update/electron-main/updateService.darwin.ts
index a75576d9195ce..0c461697cc473 100644
--- a/src/vs/platform/update/electron-main/updateService.darwin.ts
+++ b/src/vs/platform/update/electron-main/updateService.darwin.ts
@@ -49,7 +49,7 @@ export class DarwinUpdateService extends AbstractUpdateService {
 
 	protected setUpdateFeedUrl(quality: string): boolean {
 		try {
-			electron.autoUpdater.setFeedURL(createUpdateURL('darwin', quality));
+			electron.autoUpdater.setFeedURL({ url: createUpdateURL('darwin', quality) });
 		} catch (e) {
 			// application is very likely not signed
 			this.logService.error('Failed to set update feed URL', e);
diff --git a/src/vs/workbench/browser/parts/activitybar/activitybarPart.ts b/src/vs/workbench/browser/parts/activitybar/activitybarPart.ts
index 6f53eadda76d6..d95518e088f08 100644
--- a/src/vs/workbench/browser/parts/activitybar/activitybarPart.ts
+++ b/src/vs/workbench/browser/parts/activitybar/activitybarPart.ts
@@ -20,13 +20,16 @@ import { IPartService, Parts, Position as SideBarPosition } from 'vs/workbench/s
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { IDisposable, toDisposable } from 'vs/base/common/lifecycle';
 import { ToggleActivityBarVisibilityAction } from 'vs/workbench/browser/actions/toggleActivityBarVisibility';
-import { IThemeService } from 'vs/platform/theme/common/themeService';
+import { IThemeService, registerThemingParticipant } from 'vs/platform/theme/common/themeService';
 import { ACTIVITY_BAR_BACKGROUND, ACTIVITY_BAR_BORDER, ACTIVITY_BAR_FOREGROUND, ACTIVITY_BAR_BADGE_BACKGROUND, ACTIVITY_BAR_BADGE_FOREGROUND, ACTIVITY_BAR_DRAG_AND_DROP_BACKGROUND } from 'vs/workbench/common/theme';
 import { contrastBorder } from 'vs/platform/theme/common/colorRegistry';
 import { CompositeBar } from 'vs/workbench/browser/parts/compositebar/compositeBar';
+import { isMacintosh } from 'vs/base/common/platform';
+import { ILifecycleService, LifecyclePhase } from 'vs/platform/lifecycle/common/lifecycle';
+import { scheduleAtNextAnimationFrame, Dimension, createCSSRule } from 'vs/base/browser/dom';
+import { Color } from 'vs/base/common/color';
 import { ToggleCompositePinnedAction, ICompositeBar } from 'vs/workbench/browser/parts/compositebar/compositeBarActions';
 import { ViewletDescriptor } from 'vs/workbench/browser/viewlet';
-import { Dimension, createCSSRule } from 'vs/base/browser/dom';
 import { IStorageService, StorageScope } from 'vs/platform/storage/common/storage';
 import { IExtensionService } from 'vs/workbench/services/extensions/common/extensions';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
@@ -65,8 +68,9 @@ export class ActivitybarPart extends Part {
 		@IInstantiationService private instantiationService: IInstantiationService,
 		@IPartService private partService: IPartService,
 		@IThemeService themeService: IThemeService,
+		@ILifecycleService private lifecycleService: ILifecycleService,
 		@IStorageService private storageService: IStorageService,
-		@IExtensionService extensionService: IExtensionService,
+		@IExtensionService extensionService: IExtensionService
 	) {
 		super(id, { hasTitle: false }, themeService);
 
@@ -154,6 +158,27 @@ export class ActivitybarPart extends Part {
 		// Top Actionbar with action items for each viewlet action
 		this.createGlobalActivityActionBar($('.global-activity').appendTo($result).getHTMLElement());
 
+		// TODO@Ben: workaround for https://github.com/Microsoft/vscode/issues/45700
+		// It looks like there are rendering glitches on macOS with Chrome 61 when
+		// using --webkit-mask with a background color that is different from the image
+		// The workaround is to promote the element onto its own drawing layer. We do
+		// this only after the workbench has loaded because otherwise there is ugly flicker.
+		if (isMacintosh) {
+			this.lifecycleService.when(LifecyclePhase.Running).then(() => {
+				scheduleAtNextAnimationFrame(() => { // another delay...
+					scheduleAtNextAnimationFrame(() => { // ...to prevent more flickering on startup
+						registerThemingParticipant((theme, collector) => {
+							const activityBarForeground = theme.getColor(ACTIVITY_BAR_FOREGROUND);
+							if (activityBarForeground && !activityBarForeground.equals(Color.white)) {
+								// only apply this workaround if the color is different from the image one (white)
+								collector.addRule('.monaco-workbench .activitybar > .content .monaco-action-bar .action-label { will-change: transform; }');
+							}
+						});
+					});
+				});
+			});
+		}
+
 		return $result.getHTMLElement();
 	}
 
diff --git a/src/vs/workbench/node/extensionHostProcess.ts b/src/vs/workbench/node/extensionHostProcess.ts
index b91ad78ad4d5e..fb05c3f3c2e3e 100644
--- a/src/vs/workbench/node/extensionHostProcess.ts
+++ b/src/vs/workbench/node/extensionHostProcess.ts
@@ -13,6 +13,24 @@ import { Protocol } from 'vs/base/parts/ipc/node/ipc.net';
 import { createConnection } from 'net';
 import { Event, filterEvent } from 'vs/base/common/event';
 
+// TODO@ben: with Electron 2.x and node.js 8.x the "natives" module
+// can cause a native crash (see https://github.com/nodejs/node/issues/19891 and
+// https://github.com/electron/electron/issues/10905). To prevent this from
+// happening we essentially blocklist this module from getting loaded in any
+// extension by patching the node require() function.
+(function () {
+	const Module = require.__$__nodeRequire('module') as any;
+	const originalLoad = Module._load;
+
+	Module._load = function (request) {
+		if (request === 'natives') {
+			throw new Error('Either the extension or a NPM dependency is using the "natives" node module which is unsupported as it can cause a crash of the extension host. Click [here](https://go.microsoft.com/fwlink/?linkid=871887) to find out more');
+		}
+
+		return originalLoad.apply(this, arguments);
+	};
+})();
+
 interface IRendererConnection {
 	protocol: IMessagePassingProtocol;
 	initData: IInitData;
@@ -128,8 +146,6 @@ createExtHostProtocol().then(protocol => {
 	return extensionHostMain.start();
 }).catch(err => console.error(err));
 
-
-
 function patchExecArgv() {
 	// when encountering the prevent-inspect flag we delete this
 	// and the prior flag
diff --git a/src/vs/workbench/parts/debug/test/browser/debugANSIHandling.test.ts b/src/vs/workbench/parts/debug/test/browser/debugANSIHandling.test.ts
index 9c7fb85fc49dd..c8e8ed027509d 100644
--- a/src/vs/workbench/parts/debug/test/browser/debugANSIHandling.test.ts
+++ b/src/vs/workbench/parts/debug/test/browser/debugANSIHandling.test.ts
@@ -40,7 +40,7 @@ suite('Debug - ANSI Handling', () => {
 			assert(dom.hasClass(child, 'class1'));
 			assert(dom.hasClass(child, 'class2'));
 		} else {
-			assert.fail();
+			assert.fail('Unexpected assertion error');
 		}
 
 		child = root.lastChild;
@@ -49,7 +49,7 @@ suite('Debug - ANSI Handling', () => {
 			assert(dom.hasClass(child, 'class2'));
 			assert(dom.hasClass(child, 'class3'));
 		} else {
-			assert.fail();
+			assert.fail('Unexpected assertion error');
 		}
 	});
 
@@ -66,7 +66,7 @@ suite('Debug - ANSI Handling', () => {
 		if (child instanceof HTMLSpanElement) {
 			return child;
 		} else {
-			assert.fail();
+			assert.fail('Unexpected assertion error');
 			return null;
 		}
 	}
@@ -170,7 +170,7 @@ suite('Debug - ANSI Handling', () => {
 			if (child instanceof HTMLSpanElement) {
 				assertions[i](child);
 			} else {
-				assert.fail();
+				assert.fail('Unexpected assertion error');
 			}
 		}
 	}
diff --git a/src/vs/workbench/services/configuration/node/configurationService.ts b/src/vs/workbench/services/configuration/node/configurationService.ts
index f304dc4c54631..99e62f1518957 100644
--- a/src/vs/workbench/services/configuration/node/configurationService.ts
+++ b/src/vs/workbench/services/configuration/node/configurationService.ts
@@ -16,8 +16,8 @@ import { Queue } from 'vs/base/common/async';
 import { stat, writeFile } from 'vs/base/node/pfs';
 import { IJSONContributionRegistry, Extensions as JSONExtensions } from 'vs/platform/jsonschemas/common/jsonContributionRegistry';
 import { IWorkspaceContextService, Workspace, WorkbenchState, IWorkspaceFolder, toWorkspaceFolders, IWorkspaceFoldersChangeEvent, WorkspaceFolder } from 'vs/platform/workspace/common/workspace';
+import { isLinux, isWindows, isMacintosh } from 'vs/base/common/platform';
 import { IFileService } from 'vs/platform/files/common/files';
-import { isLinux } from 'vs/base/common/platform';
 import { IEnvironmentService } from 'vs/platform/environment/common/environment';
 import { ConfigurationChangeEvent, ConfigurationModel, DefaultConfigurationModel } from 'vs/platform/configuration/common/configurationModels';
 import { IConfigurationChangeEvent, ConfigurationTarget, IConfigurationOverrides, keyFromOverrideIdentifier, isConfigurationOverrides, IConfigurationData } from 'vs/platform/configuration/common/configuration';
@@ -349,7 +349,19 @@ export class WorkspaceService extends Disposable implements IWorkspaceConfigurat
 		const folderPath = URI.file(singleFolderWorkspaceIdentifier);
 		return stat(folderPath.fsPath)
 			.then(workspaceStat => {
-				const ctime = isLinux ? workspaceStat.ino : workspaceStat.birthtime.getTime(); // On Linux, birthtime is ctime, so we cannot use it! We use the ino instead!
+				let ctime: number;
+				if (isLinux) {
+					ctime = workspaceStat.ino; // Linux: birthtime is ctime, so we cannot use it! We use the ino instead!
+				} else if (isMacintosh) {
+					ctime = workspaceStat.birthtime.getTime(); // macOS: birthtime is fine to use as is
+				} else if (isWindows) {
+					if (typeof workspaceStat.birthtimeMs === 'number') {
+						ctime = Math.floor(workspaceStat.birthtimeMs); // Windows: fix precision issue in node.js 8.x to get 7.x results (see https://github.com/nodejs/node/issues/19897)
+					} else {
+						ctime = workspaceStat.birthtime.getTime();
+					}
+				}
+
 				const id = createHash('md5').update(folderPath.fsPath).update(ctime ? String(ctime) : '').digest('hex');
 				const folder = URI.file(folderPath.fsPath);
 				return new Workspace(id, getBaseLabel(folder), toWorkspaceFolders([{ path: folder.fsPath }]), null, ctime);
diff --git a/src/vs/workbench/services/contextview/electron-browser/contextmenuService.ts b/src/vs/workbench/services/contextview/electron-browser/contextmenuService.ts
index 5c323ca24097e..6382148634b3d 100644
--- a/src/vs/workbench/services/contextview/electron-browser/contextmenuService.ts
+++ b/src/vs/workbench/services/contextview/electron-browser/contextmenuService.ts
@@ -18,6 +18,7 @@ import { unmnemonicLabel } from 'vs/base/common/labels';
 import { Event, Emitter } from 'vs/base/common/event';
 import { INotificationService } from 'vs/platform/notification/common/notification';
 import { IContextMenuDelegate, ContextSubMenu, IEvent } from 'vs/base/browser/contextmenu';
+import { once } from 'vs/base/common/functional';
 
 export class ContextMenuService implements IContextMenuService {
 
@@ -42,7 +43,15 @@ export class ContextMenuService implements IContextMenuService {
 			}
 
 			return TPromise.timeout(0).then(() => { // https://github.com/Microsoft/vscode/issues/3638
-				const menu = this.createMenu(delegate, actions);
+				const onHide = once(() => {
+					if (delegate.onHide) {
+						delegate.onHide(undefined);
+					}
+
+					this._onDidContextMenu.fire();
+				});
+
+				const menu = this.createMenu(delegate, actions, onHide);
 				const anchor = delegate.getAnchor();
 				let x: number, y: number;
 
@@ -61,16 +70,18 @@ export class ContextMenuService implements IContextMenuService {
 				x *= zoom;
 				y *= zoom;
 
-				menu.popup(remote.getCurrentWindow(), { x: Math.floor(x), y: Math.floor(y), positioningItem: delegate.autoSelectFirstItem ? 0 : void 0 });
-				this._onDidContextMenu.fire();
-				if (delegate.onHide) {
-					delegate.onHide(undefined);
-				}
+				menu.popup({
+					window: remote.getCurrentWindow(),
+					x: Math.floor(x),
+					y: Math.floor(y),
+					positioningItem: delegate.autoSelectFirstItem ? 0 : void 0,
+					callback: () => onHide()
+				});
 			});
 		});
 	}
 
-	private createMenu(delegate: IContextMenuDelegate, entries: (IAction | ContextSubMenu)[]): Electron.Menu {
+	private createMenu(delegate: IContextMenuDelegate, entries: (IAction | ContextSubMenu)[], onHide: () => void): Electron.Menu {
 		const menu = new remote.Menu();
 		const actionRunner = delegate.actionRunner || new ActionRunner();
 
@@ -79,7 +90,7 @@ export class ContextMenuService implements IContextMenuService {
 				menu.append(new remote.MenuItem({ type: 'separator' }));
 			} else if (e instanceof ContextSubMenu) {
 				const submenu = new remote.MenuItem({
-					submenu: this.createMenu(delegate, e.entries),
+					submenu: this.createMenu(delegate, e.entries, onHide),
 					label: unmnemonicLabel(e.label)
 				});
 
@@ -91,6 +102,13 @@ export class ContextMenuService implements IContextMenuService {
 					type: !!e.checked ? 'checkbox' : !!e.radio ? 'radio' : void 0,
 					enabled: !!e.enabled,
 					click: (menuItem, win, event) => {
+
+						// To preserve pre-electron-2.x behaviour, we first trigger
+						// the onHide callback and then the action.
+						// Fixes https://github.com/Microsoft/vscode/issues/45601
+						onHide();
+
+						// Run action which will close the menu
 						this.runAction(actionRunner, e, delegate, event);
 					}
 				};
diff --git a/src/vs/workbench/services/extensions/electron-browser/extensionHost.ts b/src/vs/workbench/services/extensions/electron-browser/extensionHost.ts
index dad9839b58bbb..61547023c096a 100644
--- a/src/vs/workbench/services/extensions/electron-browser/extensionHost.ts
+++ b/src/vs/workbench/services/extensions/electron-browser/extensionHost.ts
@@ -193,13 +193,13 @@ export class ExtensionHostProcessWorker {
 				}, 100);
 
 				// Print out extension host output
-				onDebouncedOutput(data => {
-					const inspectorUrlIndex = !this._environmentService.isBuilt && data.data && data.data.indexOf('chrome-devtools://');
-					if (inspectorUrlIndex >= 0) {
-						console.log(`%c[Extension Host] %cdebugger inspector at ${data.data.substr(inspectorUrlIndex)}`, 'color: blue', 'color: black');
+				onDebouncedOutput(output => {
+					const inspectorUrlMatch = !this._environmentService.isBuilt && output.data && output.data.match(/ws:\/\/([^\s]+)/);
+					if (inspectorUrlMatch) {
+						console.log(`%c[Extension Host] %cdebugger inspector at chrome-devtools://devtools/bundled/inspector.html?experiments=true&v8only=true&ws=${inspectorUrlMatch[1]}`, 'color: blue', 'color: black');
 					} else {
 						console.group('Extension Host');
-						console.log(data.data, ...data.format);
+						console.log(output.data, ...output.format);
 						console.groupEnd();
 					}
 				});